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Note 15 - Income Taxes - Summary of Current and Noncurrent Deferred Tax Assets and Liabilities (Details) - USD ($)
$ in Thousands
Dec. 31, 2021
Dec. 31, 2020
Accrued employee benefits $ 3,125 $ 3,525
Inventories 30 73
Trade receivable, net 833 958
Net operating loss carryforwards 3,099 3,231
Tax credit carryforwards 2,888 2,699
Contract assets, net 313 0
Other 984 389
Deferred tax assets, gross 11,272 10,875
Valuation allowance (5,899) (6,228)
Deferred tax assets, net 5,373 4,647
Contract assets, net 0 (1,366)
Property and equipment (12,937) (12,029)
Intangible assets (1,902) (2,737)
Goodwill (129) 0
Prepaid expenses (1,005) (889)
Total deferred tax liabilities (15,973) (17,021)
Net deferred income tax liabilities (10,600) (12,374)
Deferred income taxes (10,984) (12,481)
Net deferred income tax liabilities (10,600) (12,374)
Other Assets [Member]    
Deferred income tax assets, included in Other assets $ 384 $ 107