Reportable Segments (Schedule of financial information for each reportable segment) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019	Dec. 31, 2019
Segment Reporting Information [Line Items]
Interest income	$ 23,415	$ 24,056	$ 71,271	$ 68,756
Interest expense	2,778	6,777	12,764	19,120
Net interest income (loss)	20,637	17,279	58,507	49,636
Provision for loan losses	11,100	650	27,300	1,250
Noninterest income	7,584	4,396	20,708	11,480
Noninterest expense	14,183	11,484	39,198	33,500
Net income (loss) before taxes	2,938	9,541	12,717	26,366
Income tax provision (benefit)	721	2,129	2,990	5,705
Net income (loss)	2,217	7,412	9,727	20,661
Total assets	2,479,411	2,201,626	2,479,411	2,201,626	$ 2,267,195
Commercial And Retail Banking [Member]
Segment Reporting Information [Line Items]
Interest income	23,102	23,830	70,480	68,283
Interest expense	2,396	6,628	11,452	18,649
Net interest income (loss)	20,706	17,202	59,028	49,634
Provision for loan losses	11,100	650	27,300	1,250
Noninterest income	1,307	1,341	5,987	3,739
Noninterest expense	11,445	9,529	32,134	28,604
Net income (loss) before taxes	(532)	8,364	5,581	23,519
Income tax provision (benefit)	(128)	1,882	1,491	5,107
Net income (loss)	(404)	6,482	4,090	18,412
Total assets	2,411,966	2,187,449	2,411,966	2,187,449
Mortgage Banking [Member]
Segment Reporting Information [Line Items]
Interest income	313	226	791	473
Interest expense
Net interest income (loss)	313	226	791	473
Provision for loan losses
Noninterest income	6,277	3,055	14,721	7,741
Noninterest expense	2,666	1,895	6,841	4,716
Net income (loss) before taxes	3,924	1,386	8,671	3,498
Income tax provision (benefit)	944	291	1,821	735
Net income (loss)	2,980	1,095	6,850	2,763
Total assets	66,915	13,765	66,915	13,765
Corporate Segment [Member]
Segment Reporting Information [Line Items]
Interest income	3	4	13	9
Interest expense	385	153	1,325	480
Net interest income (loss)	(382)	(149)	(1,312)	(471)
Provision for loan losses
Noninterest income
Noninterest expense	72	60	223	180
Net income (loss) before taxes	(454)	(209)	(1,535)	(651)
Income tax provision (benefit)	(95)	(44)	(322)	(137)
Net income (loss)	(359)	(165)	(1,213)	(514)
Total assets	254,721	234,845	254,721	234,845
Intersegment Eliminations [Member]
Segment Reporting Information [Line Items]
Interest income	(3)	(4)	(13)	(9)
Interest expense	(3)	(4)	(13)	(9)
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	$ (254,191)	$ (234,433)	$ (254,191)	$ (234,433)