Consolidated Statements Of Changes In Stockholders' Equity - USD ($) $ in Thousands	Cumulative Effect, Period of Adoption, Adjustment [Member] Retained Earnings (Accumulated Deficit) [Member]	Cumulative Effect, Period of Adoption, Adjustment [Member]	Cumulative Effect, Period of Adoption, Adjusted Balance [Member] Common Stock [Member]	Cumulative Effect, Period of Adoption, Adjusted Balance [Member] Non-Voting Common Stock [Member]	Cumulative Effect, Period of Adoption, Adjusted Balance [Member] Additional Paid-In Capital [Member]	Cumulative Effect, Period of Adoption, Adjusted Balance [Member] Retained Earnings (Accumulated Deficit) [Member]	Cumulative Effect, Period of Adoption, Adjusted Balance [Member] Accumulated Other Comprehensive Loss [Member]	Cumulative Effect, Period of Adoption, Adjusted Balance [Member] Treasury Stock [Member]	Cumulative Effect, Period of Adoption, Adjusted Balance [Member]	Common Stock [Member]	Non-Voting Common Stock [Member]	Additional Paid-In Capital [Member]	Retained Earnings (Accumulated Deficit) [Member]	Accumulated Other Comprehensive Loss [Member]	Treasury Stock [Member]	Total
Balance at Dec. 31, 2021										$ 55	$ 13	$ 88,528	$ 44,084	$ (170)	$ (7,180)	$ 125,330
Net income													4,518			4,518
Other comprehensive loss														(1,050)		(1,050)
Issuance of stock based incentive plan shares, net of forfeitures
Restricted stock expense, net of forfeitures												180				180
Acquisition of treasury shares surrendered upon vesting of restricted stock for payment of taxes															(48)	(48)
Purchase of treasury shares															(331)	(331)
Cash dividends declared on common stock													(257)			(257)
Balance at Mar. 31, 2022										55	13	88,708	48,345	(1,220)	(7,559)	128,342
Balance at Dec. 31, 2021										55	13	88,528	44,084	(170)	(7,180)	125,330
Balance at Dec. 31, 2022	$ (39)	$ (39)	$ 56	$ 13	$ 89,813	$ 61,056	$ (2,037)	$ (9,692)	$ 139,209	56	13	89,813	61,095	(2,037)	(9,692)	$ 139,248
Accounting Standards Update [Extensible Enumeration]																Accounting Standards Update201613 [Member]
Net income													4,448			$ 4,448
Other comprehensive loss														(216)		(216)
Issuance of stock based incentive plan shares, net of forfeitures										1		(1)
Restricted stock expense, net of forfeitures												283				283
Acquisition of treasury shares surrendered upon vesting of restricted stock for payment of taxes															(71)	(71)
Cash dividends declared on common stock													(320)			(320)
Balance at Mar. 31, 2023										$ 57	$ 13	$ 90,095	$ 65,184	$ (2,253)	$ (9,763)	$ 143,333