| Chiffre d'affaires | — | — | — | — | — | — | — | — | — | — | — | £12 029 120 | £14 611 620 | £17 630 545 | — | — |
| Bénéfice / (perte) | £111 917 | £121 772 | £145 172 | £134 506 | £203 428 | £327 446 | £551 250 | — | — | — | — | £21 706 | £210 784 | £21 970 | £87 778 | £169 864 |
| Bénéfice d'exploitation | — | — | — | — | — | — | — | — | — | — | — | £175 222 | £890 148 | £245 409 | — | — |
| Autres revenus | — | — | — | — | — | — | — | — | — | — | — | £2 | £1 | £17 | £123 | £190 |
| Total des actifs | £121 872 | £145 272 | £134 606 | £134 606 | £203 528 | £327 546 | £551 335 | £659 853 | £960 355 | £1 105 970 | £1 179 559 | £0 | £0 | £1 798 764 | £1 982 297 | £55 |
| Net Assets Liabilities | — | — | — | — | — | — | — | £659 853 | £960 355 | £1 105 970 | £1 179 559 | £1 146 152 | — | — | — | £1 982 297 |
| Equity | — | — | — | — | — | — | — | £659 853 | £960 355 | £1 105 970 | £1 179 559 | £1 146 152 | £1 127 034 | £1 798 764 | £1 982 297 | £55 |
| Current Assets | £793 373 | £859 348 | £979 071 | £1 119 358 | £1 241 314 | £1 540 185 | £1 982 595 | £2 096 395 | £2 454 475 | £3 158 432 | £3 560 654 | £3 789 269 | — | — | — | £5 948 878 |
| Net Current Assets Liabilities | £87 478 | £99 073 | £89 345 | £89 345 | £152 098 | £259 607 | £483 898 | £582 622 | £846 774 | £935 438 | £997 586 | £961 986 | — | — | — | £1 798 239 |
| Total Assets Less Current Liabilities | £137 054 | £154 088 | £148 555 | £148 555 | £223 907 | £345 152 | £575 910 | £700 942 | £1 017 233 | £1 112 739 | £1 179 559 | £1 153 349 | — | — | — | £2 040 641 |
| Cash Bank On Hand | — | — | — | — | — | — | — | £16 995 | £27 804 | £19 362 | £9 415 | £16 817 | £37 333 | £24 117 | £64 436 | £41 242 |
| Debtors | £388 178 | £487 258 | £522 584 | £645 974 | £736 052 | £941 387 | £1 078 008 | £1 132 707 | £1 283 393 | £1 442 203 | £1 522 091 | £1 796 551 | £2 773 654 | £2 352 555 | £2 635 939 | £2 071 704 |
| Other Debtors | — | — | — | — | — | — | — | £3 300 | £3 300 | £3 300 | £11 088 | £18 840 | £63 840 | £19 396 | £19 566 | £11 272 |
| Creditors | — | — | — | — | — | — | — | £1 513 773 | £1 607 701 | £2 222 994 | £2 563 068 | £2 827 283 | £3 928 968 | £4 462 106 | £6 985 246 | £4 150 639 |
| Trade Creditors Trade Payables | — | — | — | — | — | — | — | £567 391 | £629 850 | £926 620 | £1 297 071 | £1 249 941 | £1 072 765 | £571 034 | £1 797 066 | £1 047 789 |
| Other Creditors | — | — | — | — | — | — | — | £33 486 | £53 228 | £43 400 | £17 646 | £11 998 | £939 197 | £1 137 659 | £1 675 086 | £1 255 087 |
| Number Shares Allotted | — | — | — | 100 | 100 | 100 | 85 | — | — | — | — | — | — | — | — | — |
| Number Shares Issued Fully Paid | — | — | — | — | — | — | — | — | — | — | — | — | 61 | 55 | — | 55 |
| Par Value Share | — | — | — | £1 | £1 | £1 | £1 | — | — | — | — | — | £1 | £1 | — | £1 |
| Average Number Employees During Period | — | — | — | — | — | — | — | 42 | 42 | 47 | 45 | 55 | 61 | 66 | 67 | 76 |
| Frais administratifs | — | — | — | — | — | — | — | — | — | — | — | £2 412 665 | £2 862 718 | £3 532 047 | £3 744 762 | £4 545 036 |
| Accrued Liabilities | — | — | — | — | — | — | — | £16 317 | £25 092 | £43 224 | £14 039 | £13 661 | — | — | — | — |
| Accrued Liabilities Deferred Income | — | — | — | — | — | — | — | — | — | — | — | — | £14 509 | £180 071 | £48 134 | £50 423 |
| Accumulated Depreciation Impairment Property Plant Equipment | — | — | — | — | — | — | — | £37 996 | £39 282 | £22 367 | £5 536 | £21 276 | £429 182 | £471 903 | £552 331 | £662 590 |
| Additions Other Than Through Business Combinations Property Plant Equipment | — | — | — | — | — | — | — | — | — | — | — | — | £88 905 | £112 673 | £95 264 | £269 868 |
| Audit Fees Expenses | — | — | — | — | — | — | — | — | — | — | — | £0 | £19 000 | £17 520 | £27 238 | £26 320 |
| Bank Borrowings | — | — | — | — | — | — | — | — | — | — | — | — | £1 515 014 | £1 958 824 | £2 450 257 | £1 255 505 |
| Bank Borrowings Overdrafts | — | — | — | — | — | — | — | — | — | — | — | £0 | £1 515 014 | £1 958 824 | £2 450 257 | £1 255 505 |
| Called Up Share Capital | £100 | £100 | £100 | £100 | £100 | £100 | £85 | — | — | — | — | — | — | — | — | — |
| Carrying Amount Under Cost Model Revalued Assets Property Plant Equipment | — | — | — | — | — | — | — | — | — | — | — | — | £47 218 | £35 414 | £19 554 | — |
| Cash Bank In Hand | £6 205 | £84 | £78 | £14 240 | £22 990 | £19 133 | £21 511 | — | — | — | — | — | — | — | — | — |
| Cash Cash Equivalents Cash Flow Value | — | — | — | — | — | — | — | — | — | — | — | — | £37 333 | £24 117 | £64 436 | £41 242 |
| Company Contributions To Defined Benefit Plans Directors | — | — | — | — | — | — | — | — | — | — | — | £2 442 | £2 550 | £2 420 | — | — |
| Comprehensive Income Expense | — | — | — | — | — | — | — | — | — | — | — | £130 967 | £615 576 | — | — | — |
| Corporation Tax Payable | — | — | — | — | — | — | — | £47 033 | £70 964 | £32 370 | £16 183 | £10 835 | £21 706 | £153 092 | £16 561 | £92 478 |
| Cost Sales | — | — | — | — | — | — | — | — | — | — | — | £9 520 239 | £10 882 202 | £13 853 089 | £13 588 931 | £12 959 786 |
| Creditors Due After One Year | — | — | — | £5 417 | £7 717 | £1 890 | £6 923 | — | — | — | — | — | — | — | — | — |
| Creditors Due After One Year Total Noncurrent Liabilities | £11 821 | £7 109 | £0 | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Creditors Due Within One Year | — | — | — | £1 030 013 | £1 089 216 | £1 280 578 | £1 498 697 | — | — | — | — | — | — | — | — | — |
| Creditors Due Within One Year Total Current Liabilities | £718 417 | £771 870 | £879 998 | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Current Tax For Period | — | — | — | — | — | — | — | — | — | — | — | — | £21 706 | £153 149 | £16 561 | £92 478 |
| Debtors Due After One Year | — | — | — | — | — | £-9 507 | £-9 507 | — | — | — | — | — | — | — | — | — |
| Deferred Tax Expense Credit From Unrecognised Tax Loss Or Credit | — | — | — | — | — | — | — | — | — | — | — | £-7 393 | £43 233 | £0 | — | — |
| Deferred Tax Expense Credit Relating To Origination Reversal Timing Differences | — | — | — | — | — | — | — | — | — | — | — | £0 | £57 635 | £5 409 | £-4 700 | £33 674 |
| Depreciation Expense Property Plant Equipment | — | — | — | — | — | — | — | — | — | — | — | — | £65 989 | £11 805 | — | — |
| Depreciation Impairment Expense Property Plant Equipment | — | — | — | — | — | — | — | — | — | — | — | £76 759 | £77 794 | £85 066 | £80 728 | £126 221 |
| Director Remuneration | — | — | — | — | — | — | — | — | — | — | — | £181 760 | £231 317 | £205 667 | £156 463 | £163 300 |
| Director Remuneration Benefits Including Payments To Third Parties | — | — | — | — | — | — | — | — | — | — | — | £184 202 | £233 867 | £208 087 | £157 779 | £164 621 |
| Disposals Decrease In Depreciation Impairment Property Plant Equipment | — | — | — | — | — | — | — | £3 060 | £93 | £31 061 | £30 965 | £26 942 | — | — | — | — |
| Disposals Property Plant Equipment | — | — | — | — | — | — | — | £3 399 | £161 | £34 471 | £39 033 | £33 490 | — | — | — | — |
| Dividend Declared Payable | — | — | — | — | — | — | — | — | — | — | — | — | — | — | £0 | £63 636 |
| Dividends Paid | — | — | — | — | — | — | — | — | — | — | — | — | — | — | £100 000 | £150 000 |
| Dividends Paid Classified As Financing Activities | — | — | — | — | — | — | — | — | — | — | — | — | — | — | £0 | £-100 000 |
| Dividends Paid On Shares Final | — | — | — | — | — | — | — | — | — | — | — | — | — | £0 | £100 000 | £150 000 |
| Finance Lease Liabilities Present Value Total | — | — | — | — | — | — | — | £35 355 | £48 645 | £23 437 | £6 769 | £13 840 | £21 793 | £7 051 | £7 051 | — |
| Finance Lease Payments Owing Minimum Gross | — | — | — | — | — | — | — | £40 463 | £55 659 | £26 836 | £7 732 | £15 613 | £42 411 | £21 686 | £7 051 | — |
| Finished Goods Goods For Resale | — | — | — | — | — | — | — | — | — | — | — | — | £2 036 622 | £3 599 434 | £5 891 473 | £3 835 932 |
| Fixed Assets | £55 623 | £49 576 | £55 015 | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Further Item Cash Flow From Used In Financing Activities Component Net Cash Flows From Used In Financing Activities | — | — | — | — | — | — | — | — | — | — | — | — | £2 587 632 | £6 008 690 | £8 784 140 | £7 665 376 |
| Further Item Tax Increase Decrease Component Adjusting Items | — | — | — | — | — | — | — | — | — | — | — | — | £0 | £-3 684 | £-6 615 | £-142 |
| Future Finance Charges On Finance Leases | — | — | — | — | — | — | — | £5 108 | £7 014 | £3 399 | £963 | £1 773 | — | — | — | — |
| Future Minimum Lease Payments Under Non-cancellable Operating Leases | — | — | — | — | — | — | — | £209 737 | £126 766 | £59 285 | £1 451 608 | £1 327 760 | £1 128 453 | £1 021 950 | £1 026 327 | £946 436 |
| Gain Loss Due To Foreign Exchange Differences Recognised In Profit Or Loss | — | — | — | — | — | — | — | — | — | — | — | £-203 | £0 | £-377 943 | £0 | — |
| Gain Loss In Cash Flows From Change In Creditors Trade Other Payables | — | — | — | — | — | — | — | — | — | — | — | £438 175 | £36 075 | £-2 175 822 | £1 808 721 | — |
| Gain Loss In Cash Flows From Change In Debtors Trade Other Receivables | — | — | — | — | — | — | — | — | — | — | — | £977 103 | £-421 099 | £283 384 | £-564 235 | £672 539 |
| Gain Loss In Cash Flows From Change In Inventories | — | — | — | — | — | — | — | — | — | — | — | £60 721 | £1 562 812 | £2 292 039 | £-2 055 541 | £1 277 689 |
| Gain Loss On Disposals Property Plant Equipment | — | — | — | — | — | — | — | — | — | — | — | £-5 048 | £-6 002 | £-4 782 | — | — |
| Government Grant Income | — | — | — | — | — | — | — | — | — | — | — | £79 006 | £23 448 | £0 | — | — |
| Income Taxes Paid Refund Classified As Operating Activities | — | — | — | — | — | — | — | — | — | — | — | £-10 835 | £-21 763 | £-153 092 | £-16 561 | £-92 346 |
| Increase Decrease In Cash Cash Equivalents Before Foreign Exchange Differences Changes In Consolidation | — | — | — | — | — | — | — | — | — | — | — | £-20 516 | £13 216 | £-40 319 | £23 194 | £20 573 |
| Increase Decrease In Property Plant Equipment | — | — | — | — | — | — | — | £38 688 | — | — | £22 144 | £46 350 | — | — | — | — |
| Increase From Depreciation Charge For Year Property Plant Equipment | — | — | — | — | — | — | — | £19 697 | £12 692 | £5 441 | £5 536 | £15 740 | £77 794 | £85 066 | £80 728 | £126 221 |
| Intangible Assets | — | — | — | — | — | — | — | — | — | — | — | — | £-2 508 881 | £-3 729 418 | £-3 777 456 | £-4 262 806 |
| Interest Expense On Bank Overdrafts Bank Loans Similar Borrowings | — | — | — | — | — | — | — | — | — | — | — | £20 281 | £61 119 | £104 946 | — | — |
| Interest Expense On Obligations Under Finance Leases Hire Purchase Contracts | — | — | — | — | — | — | — | — | — | — | — | £2 270 | £2 670 | £2 441 | — | — |
| Interest Income On Bank Deposits | — | — | — | — | — | — | — | — | — | — | — | £2 | £1 | — | — | — |
| Interest Income On Financial Assets That Are Not Fair Value Through Profit Or Loss | — | — | — | — | — | — | — | — | — | — | — | £2 | £1 | — | — | — |
| Interest Paid Classified As Operating Activities | — | — | — | — | — | — | — | — | — | — | — | £-22 551 | £-63 789 | £-107 387 | £-146 856 | £-110 013 |
| Interest Payable Similar Charges Finance Costs | — | — | — | — | — | — | — | — | — | — | — | £22 551 | £63 789 | £107 387 | £146 856 | £110 013 |
| Interest Received Classified As Investing Activities | — | — | — | — | — | — | — | — | — | — | — | £-2 | £-1 | £-17 | £-123 | £-190 |
| Net Assets Liabilities Including Pension Asset Liability | £121 872 | £145 272 | £134 606 | £134 606 | £203 528 | £327 546 | £551 335 | — | — | — | — | — | — | — | — | — |
| Net Cash Generated From Operations | — | — | — | — | — | — | — | — | — | — | — | £1 218 970 | £203 844 | £64 344 | £-1 417 368 | — |
| Net Finance Income Costs | — | — | — | — | — | — | — | — | — | — | — | £2 | £1 | £17 | £123 | £190 |
| Nominal Value Allotted Share Capital | — | — | — | — | — | — | — | — | — | — | — | — | £55 | £55 | — | — |
| Nominal Value Shares Issued In Period | — | — | — | — | — | — | — | — | — | — | — | £61 | £55 | — | — | — |
| Operating Profit Loss | — | — | — | — | — | — | — | — | — | — | — | £175 222 | £890 148 | £245 409 | — | — |
| Other Disposals Decrease In Depreciation Impairment Property Plant Equipment | — | — | — | — | — | — | — | — | — | — | — | — | £30 512 | £42 345 | £300 | £15 962 |
| Other Disposals Property Plant Equipment | — | — | — | — | — | — | — | — | — | — | — | — | £38 513 | £48 127 | £27 640 | £23 350 |
| Other Operating Income Format1 | — | — | — | — | — | — | — | — | — | — | — | £79 006 | £23 448 | £0 | — | — |
| Other Taxation Social Security Payable | — | — | — | — | — | — | — | £20 216 | £27 796 | £28 635 | £27 383 | £33 786 | £345 159 | £446 791 | £991 091 | £385 721 |
| Payments Finance Lease Liabilities Classified As Financing Activities | — | — | — | — | — | — | — | — | — | — | — | £-13 626 | £-20 725 | £-14 635 | £-7 051 | £0 |
| Payments Received On Account | — | — | — | — | — | — | — | £549 842 | £606 693 | £970 634 | £956 662 | £1 226 233 | — | — | — | — |
| Payments To Acquire Own Shares | — | — | — | — | — | — | — | — | — | — | — | £-150 000 | £-60 000 | £0 | — | — |
| Pension Other Post-employment Benefit Costs Other Pension Costs | — | — | — | — | — | — | — | — | — | — | — | £24 709 | £28 002 | £31 838 | £34 912 | £42 892 |
| Prepayments | — | — | — | — | — | — | — | £36 757 | £57 035 | £42 200 | £21 087 | £48 015 | — | — | — | — |
| Prepayments Accrued Income | — | — | — | — | — | — | — | — | — | — | — | — | £650 146 | £80 226 | £183 667 | £145 941 |
| Proceeds From Sales Property Plant Equipment | — | — | — | — | — | — | — | — | — | — | — | £-1 500 | £-1 999 | £-1 000 | £-19 799 | £-1 667 |
| Profit Loss Account Reserve | £111 917 | £121 772 | £145 172 | £134 506 | £203 428 | £327 446 | £551 250 | — | — | — | — | — | — | — | — | — |
| Profit Loss On Ordinary Activities Before Tax | — | — | — | — | — | — | — | — | — | — | — | £152 673 | £826 360 | £138 039 | £371 311 | £675 921 |
| Property Plant Equipment | — | — | — | — | — | — | — | £40 099 | £59 090 | £38 075 | £16 321 | £16 608 | £230 271 | £233 381 | £255 206 | £242 402 |
| Property Plant Equipment Gross Cost | — | — | — | — | — | — | — | £97 086 | £77 357 | £38 688 | £22 144 | £68 494 | £662 563 | £727 109 | £794 733 | £1 041 251 |
| Provisions | — | — | — | — | — | — | — | £32 922 | £32 922 | — | — | — | — | — | — | — |
| Provisions For Liabilities Balance Sheet Subtotal | — | — | — | — | — | — | — | £23 201 | £32 922 | — | — | — | — | — | — | — |
| Provisions For Liabilities Charges | £6 741 | £8 073 | £8 816 | £8 532 | £12 662 | £15 716 | £17 652 | — | — | — | — | — | — | — | — | — |
| Purchase Property Plant Equipment | — | — | — | — | — | — | — | — | — | — | — | £-80 018 | £-88 905 | £-112 673 | £-95 264 | £-269 868 |
| Secured Debts | £236 975 | £336 496 | £317 596 | £404 192 | £436 486 | £467 563 | £418 906 | — | — | — | — | — | — | — | — | — |
| Share Capital Allotted Called Up Paid | — | — | — | £100 | £100 | £100 | £85 | — | — | — | — | — | — | — | — | — |
| Shareholder Funds | £112 017 | £121 872 | £145 272 | £134 606 | £203 528 | £327 546 | £551 335 | — | — | — | — | — | — | — | — | — |
| Social Security Costs | — | — | — | — | — | — | — | — | — | — | — | £134 740 | £172 472 | £178 097 | — | — |
| Staff Costs Employee Benefits Expense | — | — | — | — | — | — | — | — | — | — | — | £1 623 343 | £2 031 813 | £2 083 954 | £2 427 279 | £2 949 277 |
| Stocks Inventory | £398 990 | £372 006 | £456 409 | £459 144 | £482 272 | £579 665 | £883 076 | — | — | — | — | — | — | — | — | — |
| Tangible Fixed Assets | £55 623 | £49 576 | £55 015 | £59 210 | £71 809 | £85 545 | £92 012 | — | — | — | — | — | — | — | — | — |
| Tangible Fixed Assets Additions | £20 391 | £23 778 | £24 048 | £30 017 | £38 629 | £37 136 | £70 993 | — | — | — | — | — | — | — | — | — |
| Tangible Fixed Assets Cost Or Valuation | £84 479 | £108 257 | £131 414 | £161 431 | £200 060 | £237 196 | £275 218 | — | — | — | — | — | — | — | — | — |
| Tangible Fixed Assets Depreciation | £34 903 | £53 242 | £72 204 | £89 622 | £114 515 | £145 184 | £156 898 | — | — | — | — | — | — | — | — | — |
| Tangible Fixed Assets Depreciation Charged In Period | — | — | — | £17 418 | £24 893 | £30 669 | £39 441 | — | — | — | — | — | — | — | — | — |
| Tangible Fixed Assets Depreciation Charge For Period | £16 526 | £18 339 | £19 734 | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Tangible Fixed Assets Depreciation Decrease Increase On Disposals | — | — | — | — | — | — | £27 727 | — | — | — | — | — | — | — | — | — |
| Tangible Fixed Assets Depreciation Disposals | £-21 465 | — | £-772 | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Tangible Fixed Assets Disposals | £-31 377 | — | £-891 | — | — | — | £32 971 | — | — | — | — | — | — | — | — | — |
| Taxation Including Deferred Taxation Balance Sheet Subtotal | — | — | — | — | — | — | — | — | — | — | — | — | £0 | £57 635 | £63 044 | £58 344 |
| Tax Expense Credit Applicable Tax Rate | — | — | — | — | — | — | — | — | — | — | — | — | £29 008 | £157 008 | £26 227 | £92 828 |
| Tax Increase Decrease From Effect Different Tax Rates On Some Earnings | — | — | — | — | — | — | — | — | — | — | — | £0 | £13 833 | £1 298 | £-5 817 | £0 |
| Tax Increase Decrease From Effect Expenses Not Deductible In Determining Taxable Profit Or Loss | — | — | — | — | — | — | — | — | — | — | — | £91 | £394 | £1 060 | £909 | £884 |
| Tax Tax Credit On Profit Or Loss On Ordinary Activities | — | — | — | — | — | — | — | — | — | — | — | £21 706 | £210 784 | £21 970 | £87 778 | £169 864 |
| Total Additions Including From Business Combinations Property Plant Equipment | — | — | — | — | — | — | — | £109 297 | £66 011 | £68 740 | £81 244 | £122 214 | — | — | — | — |
| Total Borrowings | — | — | — | — | — | — | — | £585 197 | £655 338 | £994 071 | £963 431 | £1 240 073 | £1 515 014 | £1 958 824 | £2 450 257 | £1 255 505 |
| Total Inventories | — | — | — | — | — | — | — | £946 693 | £1 143 278 | £1 696 867 | £2 029 148 | £1 975 901 | £2 036 622 | £3 599 434 | — | — |
| Total Operating Lease Payments | — | — | — | — | — | — | — | — | — | — | — | £240 042 | £238 416 | £284 644 | — | — |
| Trade Debtors Trade Receivables | — | — | — | — | — | — | — | £1 092 650 | £1 223 058 | £1 396 703 | £1 489 916 | £1 729 696 | £2 059 668 | £2 252 933 | £2 432 706 | £1 914 491 |
| Turnover Revenue | — | — | — | — | — | — | — | — | — | — | — | £12 029 120 | £14 611 620 | £17 630 545 | — | — |
| Wages Salaries | — | — | — | — | — | — | — | — | — | — | — | £1 463 894 | £1 831 339 | £1 874 019 | £2 189 496 | £2 652 344 |
