Consolidated Statements of Comprehensive Income (Loss) - USD ($) $ in Thousands		3 Months Ended
		Mar. 31, 2019	Mar. 31, 2018
Statement of Comprehensive Income [Abstract]
Net income (loss)		$ 331	$ (422)
Other comprehensive income (loss), net of tax:
Net unrealized holding gain (loss)	[1]	15	(14)
Comprehensive income (loss)		$ 346	$ (436)

[1] Unrealized losses on available-for-sale securities are shown net of income tax expense (benefit) of $5 and $(5) for March 31, 2019 and 2018, respectively.