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INCOME TAXES (Tables) | 12 Months Ended
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Jan. 31, 2025
INCOME TAXES |
Schedule of components of the amounts of income tax expense | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | 2025 |  | 2024 |  | 2023
Current: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Federal | ​ | $ | 18,033 | ​ | $ | 10,870 | ​ | $ | 12,776
State | ​ |  | 5,056 | ​ |  | 1,835 | ​ |  | 1,012
Foreign | ​ | ​ | 791 | ​ | ​ | 2,537 | ​ | ​ | 740
​ | ​ |  | 23,880 | ​ |  | 15,242 | ​ |  | 14,528
Deferred: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Federal | ​ |  | 1,015 | ​ |  | (923) | ​ |  | (803)
State | ​ |  | 367 | ​ |  | 301 | ​ |  | 23
Foreign | ​ | ​ | 483 | ​ | ​ | 1,955 | ​ | ​ | (2,452)
​ | ​ |  | 1,865 | ​ |  | 1,333 | ​ |  | (3,232)
Income tax expense | ​ | $ | 25,745 | ​ | $ | 16,575 | ​ | $ | 11,296
Schedule of income tax expense amounts | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | 2025 |  | 2024 |  | 2023
Computed expected income tax expense | ​ | $ | 23,353 | ​ | $ | 10,276 | ​ | $ | 9,660
Difference resulting from: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
State income taxes, net of federal tax effect | ​ |  | 4,284 | ​ |  | 1,688 | ​ |  | 860
Unrecognized tax loss benefit | ​ | ​ | 1,120 | ​ | ​ | 3,858 | ​ | ​ | —
Executive compensation limitation | ​ | ​ | 1,450 | ​ | ​ | 1,040 | ​ | ​ | 1,397
Adjustment to valuation for foreign NOLs | ​ | ​ | 1,404 | ​ | ​ | 2,083 | ​ | ​ | (2,574)
Meals and entertainment expense | ​ | ​ | 860 | ​ | ​ | 626 | ​ | ​ | 83
Foreign tax rate differential | ​ | ​ | (793) | ​ | ​ | (2,294) | ​ | ​ | (441)
Net benefit related to Solar Tax Credit investments | ​ | ​ | (1,763) | ​ | ​ | (646) | ​ | ​ | —
Stock-based compensation windfall | ​ | ​ | (3,070) | ​ | ​ | — | ​ | ​ | —
Research and development tax credits adjustment | ​ | ​ | — | ​ | ​ | — | ​ | ​ | 6,181
Recognition of research and development tax credit benefits | ​ | ​ | — | ​ | ​ | — | ​ | ​ | (3,430)
Other permanent differences and adjustments, net | ​ | ​ | (1,100) | ​ | ​ | (56) | ​ |  | (440)
Income tax expense | ​ | $ | 25,745 | ​ | $ | 16,575 | ​ | $ | 11,296
Schedule of uncertain income tax | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | 2025 |  | 2024 |  | 2023
Unrecognized income tax benefits, beginning of fiscal year | ​ | $ | 2,553 | ​ | $ | 2,882 | ​ | $ | 4,937
Increases related to prior period income tax positions | ​ |  | — | ​ |  | 78 | ​ |  | —
Increases related to current period income tax positions | ​ | ​ | — | ​ |  | — | ​ |  | 2,359
Expirations of statutes of limitations | ​ |  | — | ​ |  | (407) | ​ |  | —
Settlements | ​ |  | — | ​ |  | — | ​ |  | (4,414)
Unrecognized income tax benefits, end of fiscal year | ​ | $ | 2,553 | ​ | $ | 2,553 | ​ | $ | 2,882
Schedule of effects of temporary differences that are reflected in deferred taxes | ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | 2025 |  | 2024
Assets: | ​ | ​ | ​ | ​ | ​ | ​
Net operating loss carryforwards | ​ | $ | 19,635 | ​ | $ | 19,772
Research and development costs deferral | ​ | ​ | 2,785 | ​ | ​ | 1,622
Stock awards | ​ | ​ | 1,546 | ​ | ​ | 2,726
Lease liabilities | ​ | ​ | 1,437 | ​ | ​ | 1,383
Accrued expenses | ​ | ​ | 1,152 | ​ | ​ | 1,955
Other | ​ |  | 139 | ​ |  | 148
​ | ​ |  | 26,694 | ​ |  | 27,606
​ | ​ | ​ | ​ | ​ | ​ | ​
Liabilities: | ​ | ​ | ​ | ​ | ​ | ​
Intangibles | ​ | ​ | (3,882) | ​ | ​ | (3,819)
Right-of-use assets | ​ | ​ | (1,433) | ​ | ​ | (1,378)
Property and equipment | ​ |  | (1,336) | ​ |  | (893)
Construction contracts | ​ |  | (914) | ​ |  | (839)
Other | ​ | ​ | (385) | ​ | ​ | (619)
​ | ​ |  | (7,950) | ​ |  | (7,548)
Valuation allowances | ​ | ​ | (18,192) | ​ | ​ | (17,799)
Deferred tax assets, net | ​ | $ | 552 | ​ | $ | 2,259

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