Securities - Continuous Unrealized Loss Position (Details) $ in Thousands	6 Months Ended	12 Months Ended
	Jun. 30, 2020 USD ($) security	Dec. 31, 2019 USD ($) security
Fair value and gross unrealized losses of securities with unrealized losses, aggregated by investment category and length of time that individual securities have been in a continuous unrealized loss position
Less Than 12 Months, Fair Value	$ 98,052	$ 55,293
Less Than 12 Months, Unrealized Losses	(2,226)	(460)
12 Months or Greater, Fair Value	40,446	35,524
12 Months or Greater, Unrealized Losses	(501)	(590)
Fair Value	138,498	90,817
Unrealized Losses	$ (2,727)	$ (1,050)
Number of debt securities with unrealized losses | security	167	110
Percentage of aggregate depreciation from amortized cost basis	1.90%	1.10%
Municipal Bonds
Fair value and gross unrealized losses of securities with unrealized losses, aggregated by investment category and length of time that individual securities have been in a continuous unrealized loss position
Less Than 12 Months, Fair Value	$ 15,521	$ 2,760
Less Than 12 Months, Unrealized Losses	(756)	(23)
12 Months or Greater, Fair Value	223	1,390
12 Months or Greater, Unrealized Losses	(7)	(13)
Fair Value	15,744	4,150
Unrealized Losses	(763)	(36)
Mortgage-Backed Securities
Fair value and gross unrealized losses of securities with unrealized losses, aggregated by investment category and length of time that individual securities have been in a continuous unrealized loss position
Less Than 12 Months, Fair Value	31,775	32,276
Less Than 12 Months, Unrealized Losses	(299)	(242)
12 Months or Greater, Fair Value	13,102	3,098
12 Months or Greater, Unrealized Losses	(36)	(39)
Fair Value	44,877	35,374
Unrealized Losses	(335)	(281)
Corporate Securities
Fair value and gross unrealized losses of securities with unrealized losses, aggregated by investment category and length of time that individual securities have been in a continuous unrealized loss position
Less Than 12 Months, Fair Value	20,692	8,350
Less Than 12 Months, Unrealized Losses	(526)	(131)
Fair Value	20,692	8,350
Unrealized Losses	(526)	(131)
SBA Securities
Fair value and gross unrealized losses of securities with unrealized losses, aggregated by investment category and length of time that individual securities have been in a continuous unrealized loss position
Less Than 12 Months, Fair Value	13,061	11,907
Less Than 12 Months, Unrealized Losses	(106)	(64)
12 Months or Greater, Fair Value	27,121	31,036
12 Months or Greater, Unrealized Losses	(458)	(538)
Fair Value	40,182	42,943
Unrealized Losses	(564)	$ (602)
Asset-Backed Securities
Fair value and gross unrealized losses of securities with unrealized losses, aggregated by investment category and length of time that individual securities have been in a continuous unrealized loss position
Less Than 12 Months, Fair Value	17,003
Less Than 12 Months, Unrealized Losses	(539)
Fair Value	17,003
Unrealized Losses	$ (539)