Business Combination, Assets Acquired and Liabilities Assumed (Details) - USD ($) $ in Thousands	Apr. 02, 2021	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2020
Liabilities assumed [Abstract]
Goodwill recognized		$ 25,996	$ 0	$ 0
CFBanc Corporation [Member]
Assets acquired [Abstract]
Cash and cash equivalents	$ 84,745
Securities available-for-sale	150,052
Loans receivable held for investment [Abstract]
Gross loans receivable held for investment	227,669
Deferred fees and costs	(315)
Allowance for loan losses	(2,178)
Net loans receivable held for investment	225,176
Accrued interest receivable	1,637
FHLB and FRB stock	1,061
Office properties and equipment	5,152
Deferred tax assets, net	890
Core deposit intangible	0
Other assets	2,290
Total assets	471,003
Liabilities assumed [Abstract]
Deposits	353,671
Securities sold under agreements to repurchase	59,945
FHLB advances	3,057
Notes payable	14,000
Accrued expenses and other liabilities	4,063
Total liabilities	434,736
Excess of assets acquired over liabilities assumed	36,267
Consideration paid	66,300
Goodwill recognized	26,000
CFBanc Corporation [Member] | Fair Value Adjustments [Member]
Assets acquired [Abstract]
Cash and cash equivalents	0
Securities available-for-sale	(77)
Loans receivable held for investment [Abstract]
Gross loans receivable held for investment	(1,784)
Deferred fees and costs	315
Allowance for loan losses	2,178
Net loans receivable held for investment	709
Accrued interest receivable	0
FHLB and FRB stock	0
Office properties and equipment	1,801
Deferred tax assets, net	(1,608)
Core deposit intangible	3,329
Other assets	0
Total assets	4,154
Liabilities assumed [Abstract]
Deposits	51
Securities sold under agreements to repurchase	0
FHLB advances	109
Notes payable	0
Accrued expenses and other liabilities	0
Total liabilities	160
Excess of assets acquired over liabilities assumed	3,994
CFBanc Corporation [Member] | Fair Value [Member]
Assets acquired [Abstract]
Cash and cash equivalents	84,745
Securities available-for-sale	149,975
Loans receivable held for investment [Abstract]
Gross loans receivable held for investment	225,885
Deferred fees and costs	0
Allowance for loan losses	0
Net loans receivable held for investment	225,885
Accrued interest receivable	1,637
FHLB and FRB stock	1,061
Office properties and equipment	6,953
Deferred tax assets, net	(718)
Core deposit intangible	3,329
Other assets	2,290
Total assets	475,157
Liabilities assumed [Abstract]
Deposits	353,722
Securities sold under agreements to repurchase	59,945
FHLB advances	3,166
Notes payable	14,000
Accrued expenses and other liabilities	4,063
Total liabilities	434,896
Excess of assets acquired over liabilities assumed	40,261
Consideration paid	66,257
Goodwill recognized	$ 25,996