Organization and Summary of Significant Accounting Policies (Tables)

3 Months Ended

Mar. 31, 2016

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Net Sales by Geographic Area

For the three months ended March 31, 2016 and 2015, net sales by geographic area were as follows (in thousands):

	Three Months Ended March 31,
	2016				2015
United States	$	42,468	76.5	%	$	35,501	79.3	%
Other Countries	13,062		23.5		9,261		20.7
Total	$	55,530	100.0	%	$	44,762	100.0	%

Weighted Average Number of Shares Outstanding and Income Per Share

The calculation of the weighted average number of shares outstanding and earnings per share are as follows (in thousands except per share data):

	Three Months Ended March 31,
	2016		2015
Numerator for basic and diluted earnings per share:
Net income	$	3,463	$	7,205
Denominator:
Weighted average shares outstanding - basic	53,693		53,167
Dilutive effect of stock-based awards	805		1,346
Diluted weighted average shares outstanding	54,498		54,513
Anti-dilutive stock-based awards excluded	525		362
Net income per common share:
Basic	$	0.06	$	0.14
Diluted	$	0.06	$	0.13

Summary of Changes in Estimated Product Warranty Liabilities

Changes in the Company’s estimated product warranty liabilities are as follows (in thousands):

	Three Months Ended March 31,
	2016			2015
Balance, beginning of period	$	314		$	675
Utilization of accrual	(26		)	(118		)
Warranty expense	161			(34		)
Balance, end of period	$	449		$	523