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Note 7 - Income Taxes - Deferred Tax Assets (Details) - USD ($) $ in Thousands | Jan. 31, 2023 | Jan. 31, 2022
--- | --- | ---
U.S. Federal NOL carryforward | $ 7,197 | $ 8,424
Deferred compensation | 276 | 350
Research tax credit | 2,258 | 2,573
Foreign NOL carryforward | 318 | 448
Foreign tax credit | 2,580 | 2,580
Stock compensation | 43 | 62
Other accruals not yet deducted | 305 | 276
State NOL carryforward | 2,744 | 2,730
Accrued commissions and incentives | 851 | 483
Inventory valuation allowance | 107 | 116
Lease liability | 278 | 418
Other | 165 | 17
Deferred tax assets, gross | 17,122 | 18,477
Valuation allowance | (15,993) | (16,905)
Total deferred tax assets, net of valuation allowances | 1,129 | 1,572
Depreciation | (415) | (643)
Foreign subsidiaries unremitted earnings | (591) | (231)
Prepaid | (70) | (54)
Accrued pension | 0 | (159)
Right of use asset | (266) | (386)
Total deferred tax liabilities | (1,342) | (1,473)
Deferred tax (liability)/asset, net | (213) | (99)
Deferred tax (liability)/asset, net | 213 | 99
Long-term assets | 696 | 811
Long-term liability | $ (909) | $ (712)

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