Note 17 - Quarterly Consolidated Financial Data (Unaudited) (Tables)

12 Months Ended

Dec. 31, 2013

Quarterly Financial Information Disclosure [Abstract]

Schedule of Quarterly Financial Information [Table Text Block]

	Quarters Ended
	3/31/13		6/30/13		9/30/13		12/31/13		Total
Net revenues	$	8,973	$	11,218	$	9,900	$	9,335	$	39,426
Gross margin		4,105		5,465		4,756		4,689		19,015
Earnings before income tax expense		370		1,487		1,114		1,037		4,008
Income tax expense		78		484		24		345		931
Net earnings		292		1,003		1,090		692		3,077
Net earnings per common share - basic	$	0.03	$	0.10	$	0.11	$	0.07	$	0.30
Weighted average common shares outstanding - basic		10,327,428		10,371,716		10,377,189		10,377,678		10,363,678
Net earnings per common share - diluted	$	0.03	$	0.10	$	0.10	$	0.07	$	0.30
Weighted average common shares outstanding - diluted		10,366,312		10,394,094		10,404,095		10,435,096		10,419,103

	Quarters Ended
	3/31/12			6/30/12		9/30/12		12/31/12			Total
Net revenues	$	10,731		$	13,576	$	10,799	$	8,270		$	43,376
Gross margin		4,596			6,194		4,762		3,507			19,059
Earnings (loss) before income tax expense (benefit)		(71	)		1,994		1,012		118			3,053
Income tax expense (benefit)		(28	)		660		348		(83	)		897
Net earnings (loss)		(43	)		1,334		664		201			2,156
Net earnings (loss) per common share - basic	$	0.00		$	0.13	$	0.06	$	0.02		$	0.21
Weighted average common shares outstanding - basic		10,205,114			10,273,812		10,302,417		10,311,428			10,273,377
Net earnings (loss) per common share - diluted	$	0.00		$	0.13	$	0.06	$	0.02		$	0.21
Weighted average common shares outstanding - diluted		10,205,114			10,359,657		10,360,377		10,343,793			10,347,077