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	34	0	0	34	0	34
Exercise of stock options	1	232	0	0	233	0	233
Restricted stock compensation	0	292	0	0	292	0	292
Restricted stock award	2	(2)	0	0	0	0	0
Forfeiture of restricted stock award	0	0	0	0	0	0	0
Shares purchased and canceled							0
Shares granted to Directors	$ 1	649	0	0	650	0	650
Director shares granted	11,232
Net income	$ 0		1,329	0	1,329	(343)	986
Distributions to partners	0		0	0	0	(1,349)	(1,349)
Minimum pension liability							0
Unrealized loss on investment, net	$ 0		0	(1,209)	(1,209)	0	(1,209)
Stock options exercised	11,870
Shares granted to Employees	$ 0	50	0	0	50	0	50
Shares granted to Employee	865
Restricted shares awarded	21,464
Restricted stock forfeited	(1,363)
Ending 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
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 Mar. 31, 2022	$ 943	57,812	338,424	(737)	396,442	27,788	$ 424,230
Common shares outstanding at Mar. 31, 2022	9,431,994
Stock option grant compensation	$ 0	17	0	0	17	0	17
Exercise of stock options	1	232	0	0	233	0	233
Restricted stock compensation	0	162	0	0	162	0	162
Restricted stock award							0
Forfeiture of restricted stock award							0
Shares purchased and canceled							0
Shares granted to Directors	$ 1	649	0	0	650	0	650
Director shares granted	11,232
Net income	$ 0		657	0	657	(75)	582
Distributions to partners	0		0	0	0	(578)	(578)
Minimum pension liability							0
Unrealized loss on investment, net	$ 0		0	(359)	(359)	0	(359)
Stock options exercised	11,870
Ending 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
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	33	0	0	33	0	$ 33
Exercise of stock options	2	801	0	0	803	0	803
Restricted stock compensation	0	518	0	0	518	0	518
Restricted stock award	2	(2)	0	0	0	0	0
Forfeiture of restricted stock award							0
Shares purchased and canceled	$ (1)	(129)	(870)	0	(1,000)	0	(1,000)
Stock Repurchased During Period, Shares	(18,340)
Shares granted to Directors	$ 1	599	0	0	600	0	600
Director shares granted	10,380
Net income	$ 0	0	1,163	0	1,163	(265)	898
Distributions to partners	0	0	0	0	0	(1,685)	(1,685)
Minimum pension liability	0	0	0	(16)	(16)	0	(16)
Unrealized loss on investment, net	$ 0	0	0	580	580	0	580
Stock options exercised	17,735
Shares granted to Employees	$ 0	50	0	0	50	0	50
Shares granted to Employee	928
Restricted shares awarded	25,284
Ending 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						9,495,673
Beginning balance, value at Mar. 31, 2023	$ 950	66,281	342,882	(902)	409,211	35,974	$ 445,185
Common shares outstanding at Mar. 31, 2023	9,503,633
Stock option grant compensation	$ 0	16	0	0	16	0	16
Exercise of stock options							0
Restricted stock compensation	0	261	0	0	261	0	261
Restricted stock award							0
Forfeiture of restricted stock award							0
Shares purchased and canceled	$ (1)	(129)	(870)	0	(1,000)	0	(1,000)
Stock Repurchased During Period, Shares	(18,340)
Shares granted to Directors	$ 1	599	0	0	600	0	600
Director shares granted	10,380
Net income	$ 0	0	598	0	598	(106)	492
Distributions to partners	0	0	0	0	0	(752)	(752)
Minimum pension liability	0	0	0	(16)	(16)	0	(16)
Unrealized loss on investment, net	0	0	0	206	206	0	206
Ending 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						9,495,673