Note 14 - Stockholders' Equity - Schedule of Changes in Stockholders' Equity (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Balance	$ 22,003
Net earnings	(2,856)	$ 319
Foreign currency translation, net of tax	(119)	$ 454
Balance	$ 19,028
Common Stock [Member]
Balance (in shares)	20,152,029
Balance	$ 201
Net earnings
Foreign currency translation, net of tax
Balance (in shares)	20,152,029
Balance	$ 201
Treasury Stock [Member]
Balance (in shares)	1,240
Balance	$ (57)
Net earnings
Foreign currency translation, net of tax
Balance (in shares)	1,240
Balance	$ (57)
Additional Paid-in Capital [Member]
Balance	232,345
Net earnings
Foreign currency translation, net of tax
Balance	232,345
AOCI Attributable to Parent [Member]
Balance	(5,654)
Net earnings
Foreign currency translation, net of tax	(119)
Balance	(5,773)
Retained Earnings [Member]
Balance	(204,832)
Net earnings	(2,856)
Foreign currency translation, net of tax
Balance	$ (207,688)