Fair Value Measurements - Summary of Estimated Fair Values and Carrying Values of Financial Instruments (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Financial assets
Cash and cash equivalents	$ 327,025	$ 203,560
Interest bearing time deposits in other banks	131	129
Investment securities available for sale	26,432	25,595
Non-marketable securities	7,527	4,407
Accrued interest receivable	10,228	13,676
Bank-owned life insurance	26,528	25,961
Total assets	2,499,412	1,867,293
Loans, including held for sale, net	2,049,429	1,544,113
Financial liabilities
Deposits	2,141,199	1,633,831
Accrued interest payable	437	1,215
FHLB advances	50,000	70,000
Total liabilities	2,200,405	1,745,575
Carrying Value | Level 2 Inputs
Financial assets
Cash and cash equivalents	327,025	203,560
Interest bearing time deposits in other banks	131	129
Investment securities available for sale	26,432	25,595
Non-marketable securities	7,527	4,407
Accrued interest receivable	10,228	13,676
Bank-owned life insurance	26,528	25,961
Derivative instruments assets	389	487
Total assets	398,260	273,815
Financial liabilities
Deposits	2,141,199	1,633,831
Accrued interest payable	437	1,215
FHLB advances	50,000	70,000
Notes payable	1,000	33,875
Derivative instrument liabilities	389	280
Total liabilities	2,193,025	1,739,201
Carrying Value | Level 3 Inputs
Financial assets
Loans, including held for sale, net	2,049,429	1,546,458
Estimated Fair Value | Level 2 Inputs
Financial assets
Cash and cash equivalents	327,025	203,560
Interest bearing time deposits in other banks	131	129
Investment securities available for sale	26,432	25,595
Non-marketable securities	7,527	4,407
Accrued interest receivable	10,228	13,676
Bank-owned life insurance	26,528	25,961
Derivative instruments assets	389	487
Total assets	398,260	273,815
Financial liabilities
Deposits	2,141,999	1,636,967
Accrued interest payable	437	1,215
FHLB advances	50,000	70,000
Notes payable	1,000	33,875
Derivative instrument liabilities	389	280
Total liabilities	2,193,825	1,742,337
Estimated Fair Value | Level 3 Inputs
Financial assets
Loans, including held for sale, net	$ 2,023,761	$ 1,551,624