Segment Information (Details) $ in Thousands	3 Months Ended						6 Months Ended
	Jun. 30, 2019 USD ($) bank	Mar. 31, 2019 USD ($)	Dec. 31, 2018 USD ($)	Sep. 30, 2018 USD ($)	Jun. 30, 2018 USD ($)	Mar. 31, 2018 USD ($)	Jun. 30, 2019 USD ($) segment bank	Jun. 30, 2018 USD ($)
Segment Reporting Information [Line Items]
Number of segments | segment							2
Interest income	$ 17,306				$ 15,595		$ 34,184	$ 30,390
Interest expense	1,349				606		2,458	1,138
Net interest income	15,957				14,989		31,726	29,252
Provision for loan losses	300				(300)		1,050	(300)
Other operating income	9,569				8,314		17,102	15,776
Other operating expense	19,819				16,606		36,899	33,401
Income before provision for income taxes	5,407				6,997		10,879	11,927
Provision for income taxes	1,146				1,167		2,306	2,035
Net income	4,261	$ 4,312	$ 4,848	$ 5,264	5,830	$ 4,062	8,573	9,892
Total assets	1,552,770		1,502,988				1,552,770
Loans held for sale	$ 61,531		34,710				$ 61,531
Community Banking
Segment Reporting Information [Line Items]
Number of branches | bank	16						16
Interest income	$ 16,758				15,057		$ 33,269	29,520
Interest expense	1,125				443		2,148	870
Net interest income	15,633				14,614		31,121	28,650
Provision for loan losses	300				(300)		1,050	(300)
Other operating income	3,619				2,836		6,854	5,354
Other operating expense	14,111				11,748		26,629	24,115
Income before provision for income taxes	4,841				6,002		10,296	10,189
Provision for income taxes	984				882		2,139	1,541
Net income	3,857				5,120		8,157	8,648
Total assets	1,458,014		1,443,745				1,458,014
Loans held for sale	0		0				0
Home Mortgage Lending
Segment Reporting Information [Line Items]
Interest income	548				538		915	870
Interest expense	224				163		310	268
Net interest income	324				375		605	602
Provision for loan losses	0				0		0	0
Other operating income	5,950				5,478		10,248	10,422
Other operating expense	5,708				4,858		10,270	9,286
Income before provision for income taxes	566				995		583	1,738
Provision for income taxes	162				285		167	494
Net income	404				$ 710		416	$ 1,244
Total assets	94,756		59,243				94,756
Loans held for sale	$ 61,531		$ 34,710				$ 61,531