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Note 7 - Income Taxes - Deferred Tax Assets (Liabilities) (Details) - USD ($)
$ in Thousands
Dec. 31, 2020
Dec. 31, 2019
Allowance for uncollectable accounts $ 85 $ 79
Inventories reserve 531 348
Accrued vacation 115 112
Accrued bonus 57 171
Stock-based compensation and equity appreciation rights 78 62
Lease Accounting ASC 842 Lease Liability 1,405 1,230
Section 481(a) adjustment 798 716
Net operating loss carryforwards 82 97
Tax credit carryforwards 165 171
Unrealized Foreign Currency Gain 42
Other 5 7
Total 3,363 2,993
Valuation allowance (1,504) (1,403)
Deferred tax assets 1,859 1,590
Accumulated Other Comprehensive Income (61)
Lease Accounting ASC 842 Lease Asset (1,386) (1,158)
Property and equipment (412) (432)
Deferred tax liabilities (1,859) (1,590)
Net deferred tax assets