Fair Value and Interest Rate Risk - Financial Assets and Liabilities (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	$ 90,547	$ 84,520
SBA servicing assets	977	1,000
Carrying Amount
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Financial assets, total	1,097,651	985,537
Financial liabilities, total	1,101,860	976,427
Estimated Fair Value
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Financial assets, total	1,085,209	966,941
Financial liabilities, total	1,096,466	969,211
Level 1 | Carrying Amount | Brokered Deposits
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Deposits	109,126	48,698
Level 1 | Carrying Amount | Cash and noninterest bearing balances due from banks
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents	2,320	5,182
Level 1 | Carrying Amount | Interest-bearing deposits due from banks
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents	68,489	33,311
Level 1 | Estimated Fair Value | Brokered Deposits
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Deposits	108,641	47,684
Level 1 | Estimated Fair Value | Cash and noninterest bearing balances due from banks
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents	2,320	5,182
Level 1 | Estimated Fair Value | Interest-bearing deposits due from banks
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents	68,489	33,311
Level 2 | Carrying Amount
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	80,665	75,093
Other investments	4,450	4,450
Federal Reserve Bank stock	2,523	2,627
Federal Home Loan Bank stock	8,072	3,874
Loans held for sale	5,860	5,211
Accrued interest receivable	7,628	7,267
FHLB and other borrowings	207,000	85,000
Senior notes	11,653	11,640
Subordinated debt	9,854	9,840
Junior subordinated debt owed to unconsolidated trust	8,132	8,128
Accrued interest payable	1,117	585
Interest rate swap liability	244	203
Level 2 | Carrying Amount | Demand deposits
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Deposits	127,817	269,636
Level 2 | Carrying Amount | Savings deposits
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Deposits	50,981	71,002
Level 2 | Carrying Amount | Money market deposits
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Deposits	298,717	211,000
Level 2 | Carrying Amount | Negotiable order of withdrawal accounts
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Deposits	37,970	34,440
Level 2 | Carrying Amount | Time deposits
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Deposits	238,768	225,670
Level 2 | Carrying Amount | Interest Rate Swap
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Interest rate swap receivable	244	203
Level 2 | Estimated Fair Value
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	80,665	75,093
Other investments	4,450	4,450
Federal Reserve Bank stock	2,523	2,627
Federal Home Loan Bank stock	8,072	3,874
Loans held for sale	6,320	5,534
Accrued interest receivable	7,628	7,267
FHLB and other borrowings	205,964	83,853
Senior notes	11,127	11,103
Subordinated debt	9,826	9,680
Junior subordinated debt owed to unconsolidated trust	8,132	8,128
Accrued interest payable	1,117	585
Interest rate swap liability	244	203
Level 2 | Estimated Fair Value | Demand deposits
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Deposits	127,817	269,636
Level 2 | Estimated Fair Value | Savings deposits
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Deposits	50,981	71,002
Level 2 | Estimated Fair Value | Money market deposits
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Deposits	298,717	211,000
Level 2 | Estimated Fair Value | Negotiable order of withdrawal accounts
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Deposits	37,970	34,440
Level 2 | Estimated Fair Value | Time deposits
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Deposits	235,475	221,353
Level 2 | Estimated Fair Value | Interest Rate Swap
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Interest rate swap receivable	244	203
Level 3 | Carrying Amount
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	9,882	9,427
Loans receivable, net	906,636	838,006
SBA servicing assets	882	886
Note payable	481	585
Level 3 | Estimated Fair Value
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	9,882	9,427
Loans receivable, net	893,639	818,960
SBA servicing assets	977	1,013
Note payable	$ 455	$ 544