Condensed Financial Statements of Parent Company, Balance Sheets (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Assets [Abstract]
Cash and cash equivalents	$ 89,865	$ 42,217
Securities available-for-sale	145,715	148,247
OtherAssets	12,315	13,848
Total assets	1,054,488	1,038,183
Liabilities and Stockholders' Equity [Abstract]
Other borrowings	1,950	2,550
Other liability	4,834	4,708
Common stock	25,901	25,853
Additional paid-in capital	20,959	20,698
Retained earnings	62,975	57,611
Accumulated other comprehensive loss	(79)	(2,156)
Total liabilities and stockholders' equity	1,054,488	1,038,183
Parent Company [Member]
Assets [Abstract]
Cash and cash equivalents	1,399	1,352
Securities available-for-sale	0	0
Investment in common stock of subsidiaries	110,057	103,035
OtherAssets	308	205
Total assets	111,764	104,592
Liabilities and Stockholders' Equity [Abstract]
Other borrowings	1,950	2,550
Other liability	58	36
Common stock	25,901	25,853
Additional paid-in capital	20,959	20,698
Retained earnings	62,975	57,611
Accumulated other comprehensive loss	(79)	(2,156)
Total liabilities and stockholders' equity	$ 111,764	$ 104,592