Condensed Consolidated Statements of Comprehensive Losses (Unaudited) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Statement of Comprehensive Income [Abstract]
Net loss	$ (885)	$ (3,119)	$ (3,367)	$ (4,702)
Other comprehensive (loss) income:
Net unrealized holding (losses) gains on investments arising during the period, net of tax	(16)	2	13	39
Comprehensive loss	$ (901)	$ (3,117)	$ (3,354)	$ (4,663)