Segment and Related Information (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2019 USD ($) segment	Dec. 31, 2018 USD ($)	Dec. 31, 2017 USD ($)
Segment Reporting [Abstract]
Number of reportable segments | segment	2
Segment Reporting Information [Line Items]
Interest income	$ 92,855	$ 68,768	$ 63,038
Interest expense	15,728	9,674	7,291
Noninterest income	15,170	13,274	14,227
Income (loss) before income taxes	25,767	28,225	26,075
Net income (loss)	20,906	22,579	15,249
Depreciation and amortization	3,462	2,040	2,405
Total assets	2,478,550	1,862,866	1,816,078
Goodwill	84,002	43,872	43,872
Capital expenditures	3,555	2,723	2,648
Operating Segments | Community Banking
Segment Reporting Information [Line Items]
Interest income	92,404	68,388	62,697
Interest expense	13,803	8,272	6,263
Noninterest income	10,230	8,619	9,224
Income (loss) before income taxes	26,888	28,000	24,828
Net income (loss)	21,858	22,381	14,456
Depreciation and amortization	3,454	2,030	2,393
Total assets	2,464,860	1,853,057	1,806,647
Goodwill	84,002	43,872	43,872
Capital expenditures	3,534	2,723	2,637
Operating Segments | Trust and Investment Services
Segment Reporting Information [Line Items]
Interest income	0	0	0
Interest expense	0	0	0
Noninterest income	4,568	4,579	4,756
Income (loss) before income taxes	2,288	2,165	2,521
Net income (loss)	1,856	1,731	1,486
Depreciation and amortization	8	10	12
Total assets	0	0	0
Goodwill	0	0	0
Capital expenditures	21	0	11
Other
Segment Reporting Information [Line Items]
Interest income	451	380	341
Interest expense	1,925	1,402	1,028
Noninterest income	372	76	247
Income (loss) before income taxes	(3,409)	(1,940)	(1,274)
Net income (loss)	(2,808)	(1,533)	(693)
Depreciation and amortization	0	0	0
Total assets	358,601	251,434	236,644
Goodwill	0	0	0
Capital expenditures	0	0	0
Intersegment Eliminations
Segment Reporting Information [Line Items]
Interest income	0	0	0
Interest expense	0	0	0
Noninterest income	0	0	0
Income (loss) before income taxes	0	0	0
Net income (loss)	0	0	0
Depreciation and amortization	0	0	0
Total assets	(344,911)	(241,625)	(227,213)
Goodwill	0	0	0
Capital expenditures	$ 0	$ 0	$ 0