CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY - USD ($) $ in Thousands	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	AOCI Attributable to Parent [Member]	Parent [Member]	Noncontrolling Interest [Member]	Total
Beginning balance, value at Dec. 31, 2020	$ 936	$ 56,279	$ 309,764	$ 675	$ 367,654	$ 14,999	$ 382,653
Common shares outstanding at Dec. 31, 2020	9,363,717
Stock option grant compensation	$ 0	52	0	0	52	0	52
Restricted stock compensation	0	404	0	0	404	0	404
Shares granted to Employees	0	50	0	0	50	0	50
Restricted stock award	3	(3)	0	0	0	0	0
Shares granted to Directors	1	499	0	0	500	0	500
Exercise of stock options	1	268	0	0	269	0	269
Net income	0	0	28,807	0	28,807	12,236	41,043
Distributions to partners	0	0	0	0	0	(1,846)	(1,846)
Unrealized loss on investment, net	$ 0	0	0	(482)	(482)	0	(482)
Employee shares granted	1,098
Restricted shares awarded	27,778
Director shares granted	9,105
Stock options exercised	15,334
Shares purchased and cancelled	$ 0	(37)	(227)	0	(264)	0	(264)
Shares purchased and cancelled	(6,004)
Contributions from partners	$ 0	0	0	0	0	4,551	4,551
Ending balance, value at Sep. 30, 2021	$ 941	57,512	338,344	193	396,990	29,940	426,930
Common shares outstanding at Sep. 30, 2021	9,411,028
Beginning balance, value at Dec. 31, 2020	$ 936	56,279	309,764	675	367,654	14,999	382,653
Common shares outstanding at Dec. 31, 2020	9,363,717
Ending balance, value at Dec. 31, 2021	$ 941	57,617	337,752	113	396,423	28,827	$ 425,250
Common shares outstanding at Dec. 31, 2021	9,411,028						9,411,028
Beginning balance, value at Jun. 30, 2021	$ 941	57,360	337,992	268	396,561	31,724	$ 428,285
Common shares outstanding at Jun. 30, 2021	9,411,028
Stock option grant compensation	$ 0	17	0	0	17	0	17
Restricted stock compensation	0	135	0	0	135	0	135
Net income	0	0	352	0	352	(465)	(113)
Distributions to partners	0	0	0	0	0	(1,319)	(1,319)
Unrealized loss on investment, net	0	0	0	(75)	(75)	0	(75)
Ending balance, value at Sep. 30, 2021	$ 941	57,512	338,344	193	396,990	29,940	426,930
Common shares outstanding at Sep. 30, 2021	9,411,028
Beginning balance, value at Dec. 31, 2021	$ 941	57,617	337,752	113	396,423	28,827	$ 425,250
Common shares outstanding at Dec. 31, 2021	9,411,028						9,411,028
Stock option grant compensation	$ 0	52	0	0	52	0	$ 52
Restricted stock compensation	0	550	0	0	550	0	550
Shares granted to Employees	0	50	0	0	50	0	50
Restricted stock award	2	(2)	0	0	0	0	0
Shares granted to Directors	1	649	0	0	650	0	650
Forfeiture of restricted stock award	0	0	0	0	0	0	0
Exercise of stock options	1	232	0	0	233	0	233
Net income	0	0	1,809	0	1,809	(439)	1,370
Distributions to partners	0	0	0	0	0	(1,937)	(1,937)
Unrealized loss on investment, net	$ 0	0	0	(1,533)	(1,533)	0	(1,533)
Employee shares granted	865
Restricted shares awarded	21,464
Director shares granted	11,232
Restricted stock forfeited	(1,363)
Stock options exercised	11,870
Ending balance, value at Sep. 30, 2022	$ 945	59,148	339,561	(1,420)	398,234	26,451	$ 424,685
Common shares outstanding at Sep. 30, 2022	9,455,096						9,455,096
Beginning balance, value at Jun. 30, 2022	$ 945	58,872	339,081	(1,096)	397,802	27,135	$ 424,937
Common shares outstanding at Jun. 30, 2022	9,455,096
Stock option grant compensation	$ 0	18	0	0	18	0	18
Restricted stock compensation	0	258	0	0	258	0	258
Net income	0	0	480	0	480	(96)	384
Distributions to partners	0	0	0	0	0	(588)	(588)
Unrealized loss on investment, net	0	0	0	(324)	(324)	0	(324)
Ending balance, value at Sep. 30, 2022	$ 945	$ 59,148	$ 339,561	$ (1,420)	$ 398,234	$ 26,451	$ 424,685
Common shares outstanding at Sep. 30, 2022	9,455,096						9,455,096