Investment Securities - Summary of Debt Securities (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	$ 303,580	$ 245,871
Gross Unrealized Gains	1,668	1,956
Gross Unrealized Losses	(1,438)	(194)
Allowance for Credit Losses	0
Fair Value	303,810	247,633
Schedule of Held-to-maturity Securities [Line Items]
Amortized Cost	20,000	10,000
Allowance for credit losses	0
Total securities held to maturity, net of ACL	20,000
Gross Unrealized Gains	0	0
Gross Unrealized Losses	(94)	0
Fair Value	19,906	10,000
U.S. Treasury and government sponsored entities
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	224,824	173,318
Gross Unrealized Gains	1,066	1,330
Gross Unrealized Losses	(1,397)	(47)
Fair Value	224,493	174,601
Municipal securities
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	820	820
Gross Unrealized Gains	36	36
Gross Unrealized Losses	0	0
Fair Value	856	856
Corporate bonds
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	29,946	29,951
Gross Unrealized Gains	510	546
Gross Unrealized Losses	0	(5)
Fair Value	30,456	30,492
Schedule of Held-to-maturity Securities [Line Items]
Amortized Cost	20,000	10,000
Gross Unrealized Gains	0	0
Gross Unrealized Losses	(94)	0
Fair Value	19,906	10,000
Collateralized loan obligations
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	47,990	41,782
Gross Unrealized Gains	56	44
Gross Unrealized Losses	(41)	(142)
Fair Value	$ 48,005	$ 41,684