Quarterly Financial Data (Tables)

12 Months Ended

Dec. 31, 2016

Quarterly Financial Information Disclosure [Abstract]

Summarized Quarterly Information

Summarized quarterly data for fiscal 2016 and 2015 are as follows (in thousands, except per share data):

	Year ended December 31, 2016
	1st Quarter			2nd Quarter			3rd Quarter			4th Quarter
Selected quarterly financial data:
Revenues	$	7,214		$	7,459		$	6,478		$	7,084
Gross profit	$	5,101		$	5,547		$	4,680		$	5,343
Operating loss	$	(3,679	)	$	(3,907	)	$	(4,557	)	$	(3,762	)
Net loss	$	(3,706	)	$	(3,279	)	$	(4,314	)	$	(3,725	)
Net (loss) per share, basic (1)	$	(0.32	)	$	(0.28	)	$	(0.35	)	$	(0.30	)
Weighted average shares outstanding, basic		11,524			11,741			12,209			12,323
Net (loss) per share, diluted (1)	$	(0.32	)	$	(0.28	)	$	(0.35	)	$	(0.30	)
Weighted average shares outstanding, diluted		11,524			11,741			12,209			12,323

	Year ended December 31, 2015
	1st Quarter			2nd Quarter			3rd Quarter			4th Quarter
Selected quarterly financial data:
Revenues	$	10,529		$	9,386		$	9,586		$	10,006
Gross profit	$	8,411		$	7,315		$	7,627		$	8,002
Operating income (loss)	$	2		$	(1,225	)	$	(768	)	$	(547	)
Net income (loss)	$	(10	)	$	(1,231	)	$	(770	)	$	(591	)
Net (loss) per share, basic (1)	$	(0.00	)	$	(0.11	)	$	(0.07	)	$	(0.05	)
Weighted average shares outstanding, basic		11,375			11,564			11,540			11,465
Net (loss) per share, diluted (1)	$	(0.00	)	$	(0.11	)	$	(0.07	)	$	(0.05	)
Weighted average shares outstanding, diluted		11,375			11,564			11,540			11,465

(1) Basic and diluted net (loss) per share is computed independently for each of the quarters presented. Therefore, the sum of the quarterly per share amounts will not necessarily equal the total for the year.