Condensed Consolidated Statements of Comprehensive Income (Loss) - Unaudited - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Statement Of Income And Comprehensive Income [Abstract]
NET INCOME (LOSS)	$ 17	$ 32	$ 148	$ (78)
Other Comprehensive Income (Loss):
Unrealized (loss) gain on available-for-sale securities, net of taxes	(14)	6	28
TOTAL OTHER COMPREHENSIVE (LOSS) INCOME	(14)	6	28
COMPREHENSIVE INCOME (LOSS)	$ 3	$ 38	$ 176	$ (78)