Consolidated Statements of Changes in Shareholders' Equity - USD ($) $ in Thousands	Total	Common Stock [Member]	Additional Paid-In Capital [Member]	Retained Earnings [Member]	Treasury Stock [Member]	Accumulated Other Comprehensive Income (Loss) [Member]
Balance at Dec. 31, 2018	$ 76,536	$ 18,629	$ 9,815	$ 54,288	$ (4,784)	$ (1,412)
Net income	10,414			10,414
Other comprehensive income (loss)	1,484					1,484
Issuance of 108 treasury shares	4				4
Cash dividends declared	(2,962)			(2,962)
Balance at Dec. 31, 2019	85,476	18,629	9,815	61,740	(4,780)	72
Net income	10,568			10,568
Other comprehensive income (loss)	914					914
Cash dividends declared	(3,099)			(3,099)
Balance at Dec. 31, 2020	93,859	18,629	9,815	69,209	(4,780)	986
Net income	10,837			10,837
Other comprehensive income (loss)	(3,111)					(3,111)
Purchase of 24,326 treasury shares	(939)				(939)
Cash dividends declared	(3,331)			(3,331)
Balance at Dec. 31, 2021	$ 97,315	$ 18,629	$ 9,815	$ 76,715	$ (5,719)	$ (2,125)