Condensed Financial Statements of Parent Company - Condensed Financial Statements of Parent Company (Condensed Balance Sheets) (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
ASSETS
Cash and cash equivalents	$ 115,459	$ 106,310
Deferred tax assets, net	8,409	5,242
Other assets	12,363	8,785
Total assets	1,726,691	1,366,826
LIABILITIES AND SHAREHOLDERS’ EQUITY
Other liabilities	16,538	8,920
Shareholders’ equity	165,222	143,366	$ 140,576	$ 129,787
Total liabilities and shareholders' equity	1,726,691	1,366,826
Parent Company
ASSETS
Cash and cash equivalents	2,431	3,468
Investment in bank subsidiary	162,666	140,311
Deferred tax assets, net	22	25
Other assets	136	9
Total assets	165,255	143,813
LIABILITIES AND SHAREHOLDERS’ EQUITY
Other liabilities	33	447
Shareholders’ equity	165,222	143,366
Total liabilities and shareholders' equity	$ 165,255	$ 143,813