Note 11 - Income Taxes (Tables)

12 Months Ended

Dec. 31, 2016

Notes Tables

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

	For the Years Ended December 31,
	2016		2015
Current	$	986,000	$	528,000
Deferred		21,000		(48,000	)
	$	1,007,000	$	480,000

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

	December 31,
	2016			2015
Current deferred income taxes:
Foreign tax credits	$	3,000		$	66,000
Temporary differences:
Inventory reserve		101,000			107,000
Accrued expenses and inventory		334,000			311,000
Current deferred income tax assets, net	$	438,000		$	484,000
Non-current deferred income taxes:
Temporary differences:
Property and equipment	$	(683,000	)	$	(681,000	)
Intangible assets		(4,000	)		(3,000	)
Marketable securities		112,000			78,000
Basis diffence in investments		(129,000	)		(129,000	)
Foreign exchange		(12,000	)		(45,000	)
Other		(20,000	)		(12,000	)
State income taxes		(71,000	)		(75,000	)
Non-current deferred income tax liabilities		(807,000	)		(867,000	)
Net deferred income tax liability	$	(369,000	)	$	(383,000	)

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

	For the Years Ended December 31,
	2016			2015
Income taxes based on US statutory rate of 34%	$	1,419,000		$	518,000
Non-deductible meals and entertainment		5,000			7,000
Domestic manufacturer's deduction		(71,000	)		(18,000	)
Foreign taxes		(169,000	)		(11,000	)
State taxes		66,000			75,000
Other		(243,000	)		(91,000	)
	$	1,007,000		$	480,000

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

	For the Years Ended December 31,
	2016			2015
Balance as of January 1	$	194,000		$	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	$	-		$	194,000