Income Taxes - (Details 1) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Current income tax provision:
Federal	$ 10	$ 1,459	$ 995
State		38	12
Total current income tax provision	10	1,497	1,007
Deferred income tax provision:
Federal	574	2,399	2,264
State	5	22	21
Total deferred income tax provision	579	2,421	2,285
Total provision for income taxes	$ 589	$ 3,918	$ 3,292