SELECTED QUARTERLY FINANCIAL DATA (Tables)

12 Months Ended

Dec. 31, 2017

Quarterly Financial Information Disclosure [Abstract]

Schedule of summarized quarterly financial data

Summarized quarterly financial data for fiscal years 2017 and 2016 is as follows:

	2017 Quarters
(In thousands, except per share)	1st			2nd			3rd			4th
Revenues	$	3,985		$	4,250		$	4,418		$	4,125
Gross profit	$	3,326		$	3,568		$	3,717		$	3,530
Net loss	$	(21,156	)	$	(19,677	)	$	(14,665	)	$	(21,427	)
Loss per common share, basic and diluted	$	(0.11	)	$	(0.10	)	$	(0.07	)	$	(0.10	)

	2016 Quarters
(In thousands, except per share)	1st			2nd			3rd			4th
Revenues	$	4,930		$	4,403		$	5,536		$	4,487
Gross profit	$	3,822		$	3,273		$	4,298		$	3,778
Net loss	$	(20,929	)	$	(21,094	)	$	(25,016	)	$	(22,836	)
Loss per common share, basic and diluted	$	(0.11	)	$	(0.11	)	$	(0.13	)	$	(0.12	)