Consolidated Statements of Changes in Equity (Unaudited) - USD ($) $ in Thousands	Total	Class A	Treasury Stock, at Cost	Total Additional Paid-in Capital	Total Retained Earnings (Accumulated Deficit)
Beginning balance at Dec. 31, 2019	$ 161,275	$ 251	$ (391)	$ 161,396	$ 19
Beginning balance, shares at Dec. 31, 2019		25,139,542
Equity-based compensation	(669)			(669)
Issuance of Class A common stock awards	864	$ 1		863
Issuance of Class A common stock awards, shares		69,377
Issuance of Class A common stock due to restricted stock vesting	2	$ 2
Issuance of Class A common stock due to restricted stock vesting, shares		213,339
Repurchase of Class A common stock	(655)		(655)
Net loss	(4,002)				(4,002)
Ending balance at Mar. 31, 2020	156,815	$ 254	(1,046)	161,590	(3,983)
Ending balance, shares at Mar. 31, 2020		25,422,258
Beginning balance at Dec. 31, 2020	154,191	$ 256	(1,279)	165,048	(9,834)
Beginning balance, shares at Dec. 31, 2020		25,609,758
Equity-based compensation	1,194			1,194
Issuance of Class A common stock due to restricted stock vesting	1	$ 1
Issuance of Class A common stock due to restricted stock vesting, shares		121,882
Repurchase of Class A common stock	(372)		(372)
Net loss	(1,805)				(1,805)
Ending balance at Mar. 31, 2021	$ 153,209	$ 257	$ (1,651)	$ 166,242	$ (11,639)
Ending balance, shares at Mar. 31, 2021		25,731,640