Condensed Financial Statements of Parent Company, Statements of Cash Flows (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Cash flows from operating activities [Abstract]
Net income	$ 5,389	$ 7,860
Adjustments to reconcile net income to net cash provided by operating activities [Abstract]
Gain on sale of securities, net	(264)	(314)
Stock compensation expense	261	224
Increase in other assets	(966)	1,967
Net cash (used in) provided by operating activities	(8,635)	12,370
Cash flows from investing activities [Abstract]
Net cash (used in) provided by investing activities	(122,241)	29,131
Cash flows from financing activities [Abstract]
Cash dividends paid on common stock	(2,505)	(2,496)
Net cash provided by financing activities	161,448	6,147
Net increase in cash and cash equivalents	30,572	47,648
Cash and cash equivalents at beginning of period	89,865	42,217
Cash and cash equivalents at end of period	120,437	89,865
Parent Company [Member]
Cash flows from operating activities [Abstract]
Net income	5,389	7,860
Adjustments to reconcile net income to net cash provided by operating activities [Abstract]
Equity in undistributed net income of subsidiaries	(2,644)	(4,946)
Gain on sale of securities, net	0	0
Stock compensation expense	55	12
Increase in other assets	8	110
Increase in other liabilities	5	22
Net cash (used in) provided by operating activities	2,813	3,058
Cash flows from investing activities [Abstract]
Proceeds from sale of investment securities	0	0
Cash paid in acquisition	0	0
Cash acquired in acquisition	0	0
Cash distributed to subsidiary	0	0
Net cash (used in) provided by investing activities	0	0
Cash flows from financing activities [Abstract]
Proceeds from sale of stock	96	85
Repayment of borrowings	(600)	(600)
Cash dividends paid on common stock	(2,505)	(2,496)
Net cash provided by financing activities	(3,009)	(3,011)
Net increase in cash and cash equivalents	(196)	47
Cash and cash equivalents at beginning of period	1,399	1,352
Cash and cash equivalents at end of period	$ 1,203	$ 1,399