16. Quarterly Financial Data (Unaudited)

The following financial information reflects all normal recurring adjustments, which are, in the opinion of management, necessary for a fair statement of the results of the interim periods. Summarized quarterly data for fiscal 2017 and 2016 are as follows (in thousands, except per share data):

	Year Ended December 31, 2017
	1st Quarter			2nd Quarter			3rd Quarter			4th Quarter
Selected quarterly financial data:
Revenues	$	5,576		$	5,862		$	5,804		$	5,732
Gross profit	$	4,293		$	4,577		$	4,645		$	4,377
Operating loss	$	(2,578	)	$	(1,619	)	$	(942	)	$	(535	)
Net loss	$	(2,880	)	$	(1,952	)	$	(1,670	)	$	(160	)
Net loss per share - basic (1)	$	(0.24	)	$	(0.15	)	$	(0.12	)	$	(0.01	)
Weighted average shares outstanding - basic		12,163			13,179			14,297			14,281
Net loss per share - diluted (1)	$	(0.24	)	$	(0.15	)	$	(0.12	)	$	(0.01	)
Weighted average shares outstanding - diluted		12,163			13,179			14,297			14,281

	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

(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.

F-1