Note 8 - Income Taxes - Deferred Tax Assets (Details) - USD ($)
$ in Thousands
Jan. 31, 2020
Jan. 31, 2019
U.S. Federal NOL carryforward $ 7,209 $ 7,480
Deferred compensation 401 382
Research tax credit 2,686 2,703
Foreign NOL carryforward 223 390
Foreign tax credit 2,580 2,305
Stock compensation 429 459
Other accruals not yet deducted 328 349
State NOL carryforward 2,567 2,552
Accrued commissions and incentives 354 643
Inventory valuation allowance 75 112
Other 132 159
Deferred tax assets, gross 16,984 17,534
Valuation allowance (15,937) (16,199)
Total deferred tax assets, net of valuation allowances 1,047 1,335
Depreciation (1,275) (1,734)
Foreign subsidiaries unremitted earnings (470) (498)
Prepaid (61) (80)
Total deferred tax liabilities (1,806) (2,312)
Deferred tax liability, net (759) (977)
Long-term assets 293 458
Long-term liability $ (1,052) $ (1,435)