Consolidated Statements of Changes in Stockholders' Equity - USD ($) $ in Thousands	Common Stock	Additional Paid-in Capital	Retained Earnings	Accumulated Other Comprehensive Loss	Total
Balance at Dec. 31, 2016	$ 0	$ 100	$ 57,686	$ (5,269)	$ 52,517
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income			4,234		4,234
Other comprehensive loss				435	435
Balance at Sep. 30, 2017	0	100	61,920	(4,834)	57,186
Balance at Dec. 31, 2017	0	100	61,832	(6,955)	54,977
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income			3,159		3,159
Other comprehensive loss				(1,123)	(1,123)
Balance at Sep. 30, 2018	$ 0	$ 100	$ 64,991	$ (8,078)	$ 57,013