QUARTERLY RESULTS OF OPERATIONS UNAUDITED (Tables)

12 Months Ended

Dec. 31, 2017

Quarterly Financial Information Disclosure [Abstract]

Schedule of quarterly financial information

	2017 Quarters Ended
	March 31		June 30		September 30		December 31
Revenue	$	4,347	$	2,745	$	5,905	$	3,286
Operating income (loss)		386		238		1,665		(478	)
Net income (loss)		405		228		1,229		(580	)
Net income (loss) per share – basic	$	0.02	$	0.01	$	0.06	$	(0.03	)
Net income (loss) per share – diluted	$	0.02	$	0.01	$	0.06	$	(0.03	)

	2016 Quarters Ended
	March 31		June 30		September 30		December 31
Revenue	$	4,834	$	6,904	$	5,899	$	3,929
Operating income		880		2,074		2,313		641
Net income		635		1,436		1,573		460
Net income per share – basic	$	0.03	$	0.06	$	0.07	$	0.02
Net income per share – diluted	$	0.03	$	0.06	$	0.07	$	0.02