CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME [Abstract]
Net income	$ 2,818	$ 15,540
Other comprehensive loss items:
Unrealized holding losses on available-for-sale securities arising during the period (net of tax benefit of $21 in 2017)	(34)	0
Realized gains, net of tax expense of $1 in 2017	(1)	0
Total other comprehensive loss	(35)	0
Total comprehensive income	$ 2,783	$ 15,540