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Note 20 - Summary of Deferred Income Tax Assets and Liabilities (Details) - USD ($)
$ in Thousands
Dec. 31, 2016
Dec. 31, 2015
Compensation and benefit accruals $ 1,517 $ 1,987
Inventory valuation 1,481 2,840
Federal and state net operating loss carryforwards 49,298 51,460
Deferred revenue 63 533
Accounts receivable allowance 153 42
Defined benefit pension plan 1,627 1,766
Foreign deferred revenue and other provisions 3,269 4,033
AMT credits 185 185
Other 777 1,526
Total 58,370 64,372
Domestic valuation allowance (52,900) (58,682)
Foreign valuation allowance (3,269) (4,033)
Total deferred tax assets 2,201 1,657
Foreign subsidiaries – unrepatriated earnings (543) (379)
Depreciation (1,658) (1,278)
Total deferred tax liabilities (2,201) (1,657)
Net deferred tax asset $ 0 $ 0