Consolidated Statements of Comprehensive Income (Loss) (unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Consolidated Statements of Comprehensive Income (Loss) (unaudited) [Abstract]
Net income	$ 2,027	$ 942
Other comprehensive income (loss), net of tax
Net unrealized gain (loss) on available-for-sale securities	1,561	(1,751)
Reclassification for gain included in net income	(21)	(63)
Other comprehensive income (loss), net of tax	1,540	(1,814)
Comprehensive income (loss)	$ 3,567	$ (872)