Note 18 - Income Taxes - A Reconciliation of the Provision for Income Taxes (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Federal statutory rates 35.00% 35.00% 35.00%
Federal income tax at statutory rates $ (657) $ (3,533) $ 11,480
Change in valuation allowance 9,480 3,574 1,758
Change in uncertain tax positions 73 (76) (1,741)
State income taxes, net of federal benefit 2,396 1,785 1,369
Difference between federal statutory and foreign tax rate 9,427 4,642 (353)
Stock compensation (184) (524)
Meals and entertainment 96 81 85
Amortization of deferred consideration 9,444 1,574
Transaction costs (447) 1,769
Contingent consideration liability reversal (854) (5,748)
Nontaxable interest income (965) (660)
Tax credits (947) (456)
Legal expense 522 284
Depreciation 649
Equity in net loss of investee 624 366
Asset Impairment 2,353
Foreign Exchange (7,001)
Other 670 273 (720)
Provision for income taxes $ 17,036 $ 14,583 $ 8,289
Effective income tax rate (907.00%) (144.00%) 25.00%