Basis of Presentation (Tables)

9 Months Ended

Sep. 30, 2012

Basis of Presentation [Abstract]

Activity in the warranty accrual

The activity in the warranty accrual during the nine months ended September 30, 2012 and 2011 is summarized as follows:

	September 30,
	2012			2011
	(unaudited)			(unaudited)
Accrual at beginning of year	$	1,661		$	260
Additions charged to warranty expense		1,189			277
Expiring warranties		(307	)		(-	)
Claims satisfied		(1,076	)		(191	)
Total		1,467			346
Less: current portion		(1,229	)		(346	)
Accrued extended warranty	$	238		$	-

Calculation of basic and diluted earnings per common share using weighted average shares outstanding

Basic and diluted earnings per common share were calculated using the following weighted-average shares outstanding:

	For the Three Months Ended September 30,				For the Nine Months Ended September 30,
	2012		2011		2012		2011
Weighted-average number of common and common equivalent shares outstanding:
Basic number of common shares outstanding		21,205,675		12,342,160		20,001,456		10,951,630
Dilutive effect of stock options and warrants		547,170		841,095		547,170		718,925
Diluted number of common and common stock equivalent shares outstanding		21,752,845		13,183,255		20,548,626		11,670,555