Statements of Comprehensive Income (Loss) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Statement of Comprehensive Income [Abstract]
Net income (loss)	$ (19)	$ 1,659
Other comprehensive loss:
Unrealized holding losses arising during the period	(1,022)	(8)
Reclassification adjustment for gains realized in net income	(67)
Other comprehensive loss, before tax effect	(1,089)	(8)
Tax effect of other comprehensive loss items	(295)	(3)
Other comprehensive loss, net of tax	(794)	(5)
Comprehensive income (loss)	$ (813)	$ 1,654