The Company and Summary of Significant Accounting Policies (Tables)

6 Months Ended

Jun. 30, 2013

The activity in the warranty accrual during the six months ended June 30, 2013 and 2012 is summarized as follows:

	June 30,
	2013			2012
	(unaudited)			(unaudited)
Accrual at beginning of year	$	1,440		$	1,661
Additions charged to warranty expense		691			919
Expiring warranties		(281	)		(218	)
Claims satisfied		(655	)		(658	)
Total		1,195			1,704
Less: current portion		(1,117	)		(1,378	)
Accrued long-term warranty	$	78		$	326

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

	For the Three Months Ended June 30,		For the Six Months Ended June 30,
	2013	2012		2013	2012
Weighted-average number of common and common equivalent shares outstanding:
Basic number of common shares outstanding	20,573,048	20,547,244		20,624,588	19,454,775
Dilutive effect of stock options and warrants	460,301	487,570		460,301	487,570
Diluted number of common and common stock equivalent shares outstanding	21,033,349	21,034,814		21,084,889	19,942,345