Note 6 - Accrued Expenses - Summary of Accrued Expenses (Details) - USD ($) $ in Thousands		Jun. 30, 2018	Dec. 31, 2017
Salaries, wages and employee benefits		$ 5,569	$ 3,604
Federal and state tax accruals		4,995	3,587
Restructuring, impairment and other costs			770
Other	[1]	934	1,147
Total accrued expenses		$ 11,498	$ 9,108

[1] As of June 30, 2018 and December 31, 2017, no single item included within other accrued expenses exceeded 5.0% of our total current liabilities.