Note 14 - Stockholders' Equity - Schedule of Changes in Stockholders' Equity (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Balance			$ 22,003
Net earnings	$ (2,577)	$ (3,074)	(5,433)	$ (2,755)
Foreign currency translation, net of tax	(9)	$ (542)	(128)	$ (88)
Balance	$ 16,442		$ 16,442
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		20,152,029
Balance	$ 201		$ 201
Treasury Stock [Member]
Balance (in shares)			1,240
Balance			$ (57)
Net earnings
Foreign currency translation, net of tax
Balance (in shares)	1,240		1,240
Balance	$ (57)		$ (57)
Additional Paid-in Capital [Member]
Balance			232,345
Net earnings
Foreign currency translation, net of tax
Balance	232,345		232,345
AOCI Attributable to Parent [Member]
Balance			(5,654)
Net earnings
Foreign currency translation, net of tax			(128)
Balance	(5,782)		(5,782)
Retained Earnings [Member]
Balance			(204,832)
Net earnings			(5,433)
Foreign currency translation, net of tax
Balance	$ (210,265)		$ (210,265)