Note 9 - Income Taxes - Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Deferred tax assets:
Reserves	$ 531	$ 532
Inventory capitalization	427	407
Compensation programs	578	501
Retirement liability	19	27
Equity-based compensation	257	290
Net operating loss carryforwards	40	141
Deferred rent	7	10
Intangible assets	340	264
Total deferred tax assets	(2,199)	(2,172)
Deferred tax liabilities:
Excess of book over tax basis of fixed assets	(4,767)	(4,186)
Goodwill	(891)	(869)
Total deferred tax liabilities	(5,658)	(5,055)
Net long-term deferred tax liabilities	$ (3,459)	$ (2,883)