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, 2021	$ 941	$ 57,617	$ 337,752	$ 113	$ 396,423	$ 28,827	$ 425,250
Common shares outstanding at Dec. 31, 2021	9,411,028
Stock option grant compensation	$ 0	52	0	0	52	0	52
Restricted stock compensation	0	550	0	0	550	0	550
Net income	0	0	1,809	0	1,809	(439)	1,370
Distributions to partners	0	0	0	0	0	(1,937)	(1,937)
Minimum pension liability, net							0
Unrealized loss on investment, net	0	0	0	(1,533)	(1,533)	0	(1,533)
Exercise of stock options	$ 1	232	0	0	233	0	233
Stock options exercised	11,870
Shares granted to Employees	$ 0	50	0	0	50	0	50
Shares granted to Employee	865
Restricted stock award	$ 2	(2)	0	0	0	0	0
Restricted shares awarded	21,464
Shares granted to Directors	$ 1	649	0	0	650	0	650
Director shares granted	11,232
Forfeiture of restricted stock award	$ 0	0	0	0	0	0	0
Restricted stock forfeited	(1,363)
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
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
Ending balance, value at Dec. 31, 2022	$ 946	65,158	342,317	(1,276)	407,145	37,066	$ 444,211
Common shares outstanding at Dec. 31, 2022	9,459,686						9,459,686
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)
Minimum pension liability, net							0
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
Beginning balance, value at Dec. 31, 2022	$ 946	65,158	342,317	(1,276)	407,145	37,066	$ 444,211
Common shares outstanding at Dec. 31, 2022	9,459,686						9,459,686
Stock option grant compensation	$ 0	49	0	0	49	0	$ 49
Restricted stock compensation	0	773	0	0	773	0	773
Shares purchased and cancelled	$ (3)	(260)	(1,737)	0	(2,000)	0	(2,000)
Stock Repurchased During Period, Shares	(36,909)
Net income	$ 0	0	2,422	0	2,422	(425)	1,997
Distributions to partners	0	0	0	0	0	(2,437)	(2,437)
Minimum pension liability, net	0	0	0	(24)	(24)	0	(24)
Unrealized loss on investment, net	0	0	0	972	972	0	972
Exercise of stock options	$ 2	801	0	0	803	0	803
Stock options exercised	17,735
Shares granted to Employees	$ 0	50	0	0	50	0	50
Shares granted to Employee	928
Restricted stock award	$ 2	(2)	0	0	0	0	0
Restricted shares awarded	25,284
Shares granted to Directors	$ 1	599	0	0	600	0	600
Director shares granted	10,380
Ending balance, value at Sep. 30, 2023	$ 948	67,168	343,002	(328)	410,790	34,204	$ 444,994
Common shares outstanding at Sep. 30, 2023	9,477,104						9,477,104
Beginning balance, value at Jun. 30, 2023	$ 950	67,028	342,610	(712)	409,876	35,116	$ 444,992
Common shares outstanding at Jun. 30, 2023	9,495,673
Stock option grant compensation	$ 0	16	0	0	16	0	16
Restricted stock compensation	0	255	0	0	255	0	255
Shares purchased and cancelled	$ (2)	(131)	(867)	0	(1,000)	0	(1,000)
Stock Repurchased During Period, Shares	(18,569)
Net income	$ 0	0	1,259	0	1,259	(160)	1,099
Distributions to partners	0	0	0	0	0	(752)	(752)
Minimum pension liability, net	0	0	0	(8)	(8)	0	(8)
Unrealized loss on investment, net	0	0	0	392	392	0	392
Ending balance, value at Sep. 30, 2023	$ 948	$ 67,168	$ 343,002	$ (328)	$ 410,790	$ 34,204	$ 444,994
Common shares outstanding at Sep. 30, 2023	9,477,104						9,477,104