Note 11 - Income Taxes (Tables)

12 Months Ended

Dec. 31, 2017

Notes Tables

Schedule of Components of Income Tax Expense (Benefit) [Table Text Block]

	For the Years Ended December 31,
	2017			2016
Current	$	1,415,000		$	986,000
Deferred		(378,000	)		21,000
	$	1,037,000		$	1,007,000

Schedule of Deferred Tax Assets and Liabilities [Table Text Block]

	December 31,
	2017			2016
Current deferred income taxes:
Foreign tax credits	$	-		$	3,000
Temporary differences:
Inventory reserve		-			101,000
Accrued expenses and inventory		-			334,000
Current deferred income tax assets, net	$	-		$	438,000
Non-current deferred income taxes:
Temporary differences:
Property and equipment	$	(379,000	)	$	(683,000	)
Intangible assets		(4,000	)		(4,000	)
Marketable securities		122,000			112,000
Inventory reserve		60,000			-
Accrued expenses and inventory		355,000			-
Basis diffence in investments		(80,000	)		(129,000	)
Foreign exchange		(8,000	)		(12,000	)
Other		(26,000	)		(20,000	)
State income taxes		(21,000	)		(71,000	)
Non-current deferred income tax assets (liabilities)		19,000			(807,000	)
Net deferred income tax assets (liabilities)	$	19,000		$	(369,000	)

Schedule of Effective Income Tax Rate Reconciliation [Table Text Block]

	For the Years Ended December 31,
	2017			2016
Income taxes based on U.S. statutory rate of 34%	$	1,247,000		$	1,419,000
Non-deductible meals and entertainment		6,000			5,000
Deemed foreign repatriation		468,000			-
Domestic manufacturer's deduction		(97,000	)		(71,000	)
Foreign taxes		(500,000	)		(169,000	)
State taxes		82,000			66,000
Effect of Federal tax rate reduction from 35% to 21%		(53,000	)		-
Other		(116,000	)		(243,000	)
	$	1,037,000		$	1,007,000

Schedule of Unrecognized Tax Benefits Roll Forward [Table Text Block]

	For the Years Ended December 31,
	2017		2016
Balance as of January 1	$	-	$	194,000
Gross increase from tax positions taken during the year		-		-
Gross increase from tax positions taken during prior periods		-		-
Reductions to unrecognized tax benefits		-		(194,000	)
Balance as of December 31	$	-	$	-