Note 7 - Income Taxes (Details) - Deferred Income Taxes (USD $) In Thousands, unless otherwise specified	Mar. 31, 2014	Dec. 31, 2013
Deferred tax assets:
Net operating loss carryforwards	$ 12,210	$ 12,074
Inventory	1,855	1,856
Other liabilities	2,967	3,051
Fixed assets	2,007	2,069
Other temporary differences	716	751
	19,755	19,801
Less: valuation allowance	(19,678)	(19,745)
Total deferred tax assets	77	56
Deferred tax liability:
Intangibles	(1,385)	(1,453)
Other temporary differences	163	(13)
Net deferred tax liability	(1,145)	(1,410)
As reported:
Non-current deferred tax assets	77	56
Current deferred tax liability	(260)	(271)
Non-current deferred tax liability	$ (962)	$ (1,195)