Quarterly Financial Data (Unaudited) (Tables)

12 Months Ended

Dec. 31, 2018

Quarterly Financial Information Disclosure [Abstract]

Summarized Quarterly Information

Summarized quarterly data for fiscal 2018 and 2017 are as follows (in thousands, except per share data):

	Year Ended December 31, 2018
	1st Quarter			2nd Quarter			3rd Quarter			4th Quarter
Selected quarterly financial data:
Revenues	$	5,463		$	6,945		$	6,525		$	7,352
Gross profit	$	4,154		$	5,829		$	5,546		$	6,424
Operating income (loss)	$	(2,021	)	$	74		$	55		$	679
Net income (loss)	$	(2,381	)	$	(2,177	)	$	(983	)	$	2,801
Net earnings (loss) per share - basic (1)	$	(0.16	)	$	(0.10	)	$	(0.04	)	$	0.10
Weighted average shares outstanding - basic		15,299			21,888			25,020			26,925
Net earnings (loss) per share - diluted (1)	$	(0.16	)	$	(0.10	)	$	(0.04	)	$	0.10
Weighted average shares outstanding - diluted		15,299			21,888			25,020			27,395

	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

(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.