Condensed Consolidated Statements of Comprehensive Income (Loss) - Unaudited - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Statement Of Income And Comprehensive Income [Abstract]
NET INCOME (LOSS)	$ 20	$ 16	$ 131	$ (110)
Other Comprehensive Income (Loss):
Unrealized gain (loss) on available-for-sale securities, net of taxes	21	(3)	42	(6)
TOTAL OTHER COMPREHENSIVE INCOME (LOSS)	21	(3)	42	(6)
COMPREHENSIVE INCOME (LOSS)	$ 41	$ 13	$ 173	$ (116)