Reportable Segments (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Segment Reporting Information [Line Items]
Interest income	$ 94,818	$ 92,652	$ 76,657
Interest expense	15,008	25,383	16,505
Net interest income (loss)	79,810	67,269	60,152
Provision for loan losses	29,600	2,300	1,900
Noninterest income	27,353	14,983	10,201
Noninterest expense	53,744	44,473	39,763
Net income (loss) before taxes	23,819	35,479	28,690
Income tax provision (benefit)	5,491	7,621	6,401
Net income (loss)	18,328	27,858	$ 22,289
Total assets	2,482,587	2,267,195
Commercial And Retail Banking [Member]
Segment Reporting Information [Line Items]
Interest income	93,640	91,923
Interest expense	13,317	24,467
Net interest income (loss)	80,323	67,456
Provision for loan losses	29,600	2,300
Noninterest income	7,568	5,060
Noninterest expense	43,563	37,797
Net income (loss) before taxes	14,728	32,419
Income tax provision (benefit)	3,582	6,979
Net income (loss)	11,146	25,440
Total assets	2,419,245	2,239,430
Mortgage Banking [Member]
Segment Reporting Information [Line Items]
Interest income	1,178	729
Interest expense
Net interest income (loss)	1,178	729
Provision for loan losses
Noninterest income	19,785	9,923
Noninterest expense	9,898	6,436
Net income (loss) before taxes	11,065	4,216
Income tax provision (benefit)	2,324	885
Net income (loss)	8,741	3,331
Total assets	62,910	27,356
Corporate Segment [Member]
Segment Reporting Information [Line Items]
Interest income	17	13
Interest expense	1,708	929
Net interest income (loss)	(1,691)	(916)
Provision for loan losses
Noninterest income
Noninterest expense	283	240
Net income (loss) before taxes	(1,974)	(1,156)
Income tax provision (benefit)	(415)	(243)
Net income (loss)	(1,559)	(913)
Total assets	264,566	242,069
Intersegment Eliminations [Member]
Segment Reporting Information [Line Items]
Interest income	(17)	(13)
Interest expense	(17)	(13)
Net interest income (loss)
Provision for loan losses
Noninterest income
Noninterest expense
Net income (loss) before taxes
Income tax provision (benefit)
Net income (loss)
Total assets	$ (264,134)	$ (241,660)