| FY2018 | FY2019 | FY2020 | FY2021 | FY2022 | FY2023 | |
| LIABILITIES | ||||||
| Current liabilities | ||||||
| Notes and accounts payable - trade | 565 | 1,642 | 300 | 520 | 1,169 | 1,046 |
| Short-term borrowings | - | 13,000 | - | - | - | - |
| Current portion of convertible-bond-type bonds with share acquisition rights | - | - | - | - | - | 46,536 |
| Accounts payable - other | 1,269 | 1,594 | 5,388 | 9,646 | 4,573 | 7,459 |
| Income taxes payable | 2,240 | 3,367 | 6,332 | 6,470 | 4,112 | 6,538 |
| Provision for bonuses | 1,089 | 1,190 | 1,633 | 1,928 | 1,697 | 1,730 |
| Provision for bonuses for directors | 176 | 226 | 318 | 389 | 344 | 259 |
| Provision for sales returns | 0 | 0 | 0 | - | - | - |
| Provision for sales discount | 269 | 144 | 117 | - | - | - |
| Provision for point card certificates | 11 | 7 | 0 | - | - | - |
| Provision for loss on order received | 118 | - | 35 | - | - | - |
| Deferred tax liabilities | - | - | - | - | - | - |
| Other current liabilities | 3,216 | 2,916 | 6,894 | 13,660 | 8,121 | 5,358 |
| Total current liabilities | 8,957 | 24,090 | 21,022 | 32,616 | 20,019 | 68,928 |
| Long-term liabilities | ||||||
| Convertible bond | - | - | - | 48,146 | 47,341 | - |
| Retirement benefit liability | - | 199 | - | - | - | - |
| Deferred tax liabilities | 157 | 193 | 3,808 | 156 | 132 | 391 |
| Other long-term liabilities | 792 | 962 | 710 | 782 | 711 | 930 |
| Total long-term liabilities | 950 | 1,356 | 4,519 | 49,085 | 48,185 | 1,322 |
| Total liabilities | 9,908 | 25,446 | 25,541 | 81,701 | 68,204 | 70,250 |
| NET ASSETS | ||||||
| Shareholders' equity | ||||||
| Capital stock | 15,000 | 15,000 | 15,000 | 15,000 | 15,000 | 15,000 |
| Capital surplus | 26,389 | 26,881 | 27,833 | 28,006 | 27,844 | 27,428 |
| Retained earnings | 80,404 | 88,758 | 110,529 | 130,954 | 145,046 | 163,070 |
| Treasury shares | -2,588 | -2,036 | -1,364 | -39,393 | -38,639 | -37,765 |
| Total shareholders' equity | 119,204 | 128,602 | 151,999 | 134,567 | 149,251 | 167,733 |
| Accumulated other comprehensive income | ||||||
| Valuation difference on available-for-sale securities | 1,355 | -3,058 | 14,596 | 3,548 | -6,870 | 4,157 |
| Revaluation reserve for land | -2,166 | -3,115 | -3,115 | -3,115 | -3,115 | -3,115 |
| Foreign currency translation adjustment | 703 | 130 | 1,174 | 2,418 | 3,034 | 4,792 |
| Remeasurements of defined benefit plans | -226 | -586 | 171 | 271 | -157 | 1,275 |
| Total accumulated other comprehensive income | -333 | -6,629 | 12,827 | 3,122 | -7,108 | 7,110 |
| Share subscription rights | 413 | 373 | 303 | 411 | 541 | 707 |
| Total net assets | 119,284 | 122,346 | 165,129 | 138,101 | 142,684 | 175,552 |
| Total liabilities and net assets | 129,192 | 147,793 | 190,671 | 219,803 | 210,889 | 245,802 |