Consolidated Statements of Equity - USD ($) $ in Thousands	Total	Total Stockholders' Equity	Common Stock	Additional Paid-In Capital	Accumulated Other Comprehensive Loss	Retained Earnings	Noncontrolling Interest
Beginning balance, value at Dec. 31, 2017	$ 426,810	$ 398,242	$ 12,947	$ 320,167	$ (5,264)	$ 70,392	$ 28,568
Beginning balance (in shares) at Dec. 31, 2017			25,894,773
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	4,235	4,255				4,255	(20)
Other comprehensive income (loss)	407	407			407
Restricted stock issuance	1	1	$ 63	(62)
Restricted stock issuance (in shares)			124,597
Stock compensation	4,480	4,480		4,480
Shares withheld for taxes and tax benefit of vested shares	(1,095)	(1,095)	$ (24)	(1,071)
Shares withheld for taxes and tax benefit of vested shares (in shares)			(47,290)
Rights offering, net	(166)	(166)		(166)
Centennial redemption of withdrawing member interest	0	13,172		13,172			(13,172)
Ending balance, value at Dec. 31, 2018	434,672	419,296	$ 12,986	336,520	(4,857)	74,647	15,376
Ending balance (in shares) at Dec. 31, 2018			25,972,080
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	10,579	10,580				10,580	(1)
Other comprehensive income (loss)	(1,914)	(1,914)			(1,914)
Restricted stock issuance	0	0	$ 110	(110)
Restricted stock issuance (in shares)			221,267
Stock compensation	3,958	3,958		3,958
Shares withheld for taxes and tax benefit of vested shares	(1,671)	(1,671)	$ (48)	(1,623)
Shares withheld for taxes and tax benefit of vested shares (in shares)			(96,550)
Ending balance, value at Dec. 31, 2019	445,624	430,249	$ 13,048	338,745	(6,771)	85,227	15,375
Ending balance (in shares) at Dec. 31, 2019			26,096,797
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	(747)	(740)				(740)	(7)
Other comprehensive income (loss)	(2,949)	(2,949)			(2,949)
Restricted stock issuance	0	0	$ 169	(169)
Restricted stock issuance (in shares)			338,074
Stock compensation	5,629	5,629		5,629
Shares withheld for taxes and tax benefit of vested shares	(2,226)	(2,226)	$ (80)	(2,146)
Shares withheld for taxes and tax benefit of vested shares (in shares)			(158,041)
Ending balance, value at Dec. 31, 2020	$ 445,331	$ 429,963	$ 13,137	$ 342,059	$ (9,720)	$ 84,487	$ 15,368
Ending balance (in shares) at Dec. 31, 2020			26,276,830