Note 8 - Income Taxes (Tables)

12 Months Ended

Dec. 31, 2013

Income Tax Disclosure [Abstract]

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

	2013		2012			2011
Current provision:
Federal	$	2,982,023	$	3,054,862		$	2,155,653
State		527,042		415,244			375,336
		3,509,065		3,470,106			2,530,989
Deferred provision (benefit):
Federal		399,032		(107,843	)		229,540
State		46,945		(12,688	)		27,004
		445,977		(120,531	)		256,544
	$	3,955,042	$	3,349,575		$	2,787,533

Schedule of Income before Income Tax, Domestic and Foreign [Table Text Block]

	2013			2012			2011
United States	$	9,920,099		$	7,941,689		$	6,344,634
United Kingdom		565,538			509,426			476,414
Canada		858,532			999,609			945,041
Australia		69,905			(210,372	)		(131,467	)
Spain		(193,315	)		(294,707	)		(93,120	)
	$	11,220,759		$	8,945,645		$	7,541,502

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

	2013			2012
Deferred income tax assets:
Allowance for doubtful accounts	$	98		$	39,310
Capitalized inventory costs		208,384			200,017
Warrants and stock-based compensation		48,591			54,042
Accrued expenses, reserves, and other		101,050			110,151
Total deferred income tax assets		358,123			403,520
Deferred income tax liabilities:
Property and equipment depreciation		1,074,646			689,893
Goodwill and other intangible assets amortization		186,501			170,674
Total deferred income tax liabilities		1,261,147			860,567
Net deferred tax asset (liability)	$	(903,024	)	$	(457,047	)

Schedule of Net Deferred Tax Liability [Table Text Block]

	2013			2012
Current deferred tax assets	$	309,533		$	349,478
Long-term deferred tax liabilities		(1,212,557	)		(806,525	)
Net deferred tax asset (liability)	$	(903,024	)	$	(457,047	)

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

	2013			2012			2011
Statutory rate – Federal US income tax		34	%		34	%		34	%
State and local taxes		6	%		4	%		4	%
Non-U.S. income tax at different rates		(1%	)		1	%		2	%
Domestic production activities deduction		(2%	)		(1%	)		(1%	)
Other, net		(2%	)		(1%	)		(2%	)
Effective rate		35	%		37	%		37	%