Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Statement Of Income And Comprehensive Income [Abstract]
NET INCOME	$ 117	$ 148
Other comprehensive income (loss):
Unrealized gain (loss) on available-for-sale securities, net	38	(43)
Total other comprehensive income (loss)	38	(43)
COMPREHENSIVE INCOME	$ 155	$ 105