Consolidated Statements of Shareholders' Equity - USD ($) $ in Thousands	Total	Cumulative Effect Adjustment [Member]	Cumulative Effect Adjusted Balance [Member]	Common Stock [Member]	Common Stock [Member] Cumulative Effect Adjusted Balance [Member]	Surplus [Member]	Surplus [Member] Cumulative Effect Adjusted Balance [Member]	Retained Earnings [Member]	Retained Earnings [Member] Cumulative Effect Adjustment [Member]	Retained Earnings [Member] Cumulative Effect Adjusted Balance [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Accumulated Other Comprehensive Income (Loss) [Member] Cumulative Effect Adjusted Balance [Member]
Beginning Balance at Dec. 31, 2021	$ 109,623			$ 99		$ 82,910		$ 24,836			$ 1,778
Beginning Balance,shares at Dec. 31, 2021				9,826,435
Net income (loss)	4,902							4,902
Dividends declared	(2,213)							(2,213)
Issuance of shares of common stock, net proceeds	34,659			$ 50		34,609
Issuance of shares of common stock, net proceeds, shares				5,101,205
Exercise of stock options	120					120
Exercise of stock options, shares				12,000
Stock option expenses	59					59
Other comprehensive income (loss)	(10,208)										(10,208)
Ending Balance at Sep. 30, 2022	136,942			$ 149		117,698		27,525			(8,430)
Ending Balance, Shares at Sep. 30, 2022				14,939,640
Beginning Balance at Jun. 30, 2022	104,771			$ 99		83,070		26,491			(4,889)
Beginning Balance,shares at Jun. 30, 2022				9,838,435
Net income (loss)	1,772							1,772
Dividends declared	(738)							(738)
Issuance of shares of common stock, net proceeds	34,659			$ 50		34,609
Issuance of shares of common stock, net proceeds, shares				5,101,205
Stock option expenses	19					19
Other comprehensive income (loss)	(3,541)										(3,541)
Ending Balance at Sep. 30, 2022	136,942			$ 149		117,698		27,525			(8,430)
Ending Balance, Shares at Sep. 30, 2022				14,939,640
Beginning Balance at Dec. 31, 2022	138,553	$ (5,419)	$ 133,134	$ 149	$ 149	117,709	$ 117,709	27,100	$ (5,419)	$ 21,681	(6,405)	$ (6,405)
Beginning Balance,shares at Dec. 31, 2022				14,939,640	14,939,640
Net income (loss)	1,033							1,033
Dividends declared	(3,652)							(3,652)
Issuance of shares of common stock, net proceeds	9,980			$ 13		9,967
Issuance of shares of common stock, net proceeds, shares				1,282,052
Employee stock purchase plan	84					84
Employee stock purchase plan, shares				14,179
Stock option expenses	96					96
Other comprehensive income (loss)	676										676
Ending Balance at Sep. 30, 2023	141,351			$ 162		127,856		19,062			(5,729)
Ending Balance, Shares at Sep. 30, 2023				16,235,871
Beginning Balance at Jun. 30, 2023	142,452			$ 162		127,818		19,039			(4,567)
Beginning Balance,shares at Jun. 30, 2023				16,228,440
Net income (loss)	1,240							1,240
Dividends declared	(1,217)							(1,217)
Employee stock purchase plan, shares				7,431
Stock option expenses	38					38
Other comprehensive income (loss)	(1,162)										(1,162)
Ending Balance at Sep. 30, 2023	$ 141,351			$ 162		$ 127,856		$ 19,062			$ (5,729)
Ending Balance, Shares at Sep. 30, 2023				16,235,871