Fair Value Measurements and Disclosure - Assets and Liabilities (Details) $ in Thousands	Sep. 30, 2021 USD ($)	Dec. 31, 2020 USD ($)
AFS Securities:
Total AFS securities	$ 161,732	$ 82,341
Marketable equity securities	3,776	3,851
Impaired loans
Total	165,508	94,560
Description of Liabilities
Total	11,295	10,924
U.S. Government agencies
AFS Securities:
Total AFS securities	36,038	33,710
U.S. Government collateralized mortgage obligations
AFS Securities:
Total AFS securities	65,032	38,445
Asset-backed securities
AFS Securities:
Total AFS securities	4,696	3,909
Municipal bonds
AFS Securities:
Total AFS securities	50,457	1,058
Corporate bonds
AFS Securities:
Total AFS securities	5,509	5,219
Recurring
AFS Securities:
Total AFS securities	161,732	82,341
Marketable equity securities	3,776	3,851
Description of Liabilities
Junior subordinated debt	11,295	10,924
Recurring \| U.S. Government agencies
AFS Securities:
Total AFS securities	36,038	33,710
Recurring \| U.S. Government collateralized mortgage obligations
AFS Securities:
Total AFS securities	65,032	38,445
Recurring \| Asset-backed securities
AFS Securities:
Total AFS securities	4,696	3,909
Recurring \| Municipal bonds
AFS Securities:
Total AFS securities		1,058
Recurring \| Corporate bonds
AFS Securities:
Total AFS securities	5,509	5,219
Nonrecurring
Impaired loans
Total impaired loans		3,364
Nonrecurring \| Real estate construction and development
Impaired loans
Real estate mortgage		3,364
Nonrecurring \| Other real estate owned
Impaired loans
Real estate mortgage		5,004
Quoted Prices in Active Markets for Identical Assets (Level 1)
Impaired loans
Total	3,776	3,851
Description of Liabilities
Junior subordinated debt	0	0
Total	0	0
Quoted Prices in Active Markets for Identical Assets (Level 1) \| Recurring
AFS Securities:
Total AFS securities	0	0
Marketable equity securities	3,776	3,851
Description of Liabilities
Junior subordinated debt	0	0
Quoted Prices in Active Markets for Identical Assets (Level 1) \| Recurring \| U.S. Government agencies
AFS Securities:
Total AFS securities	0	0
Quoted Prices in Active Markets for Identical Assets (Level 1) \| Recurring \| U.S. Government collateralized mortgage obligations
AFS Securities:
Total AFS securities	0	0
Quoted Prices in Active Markets for Identical Assets (Level 1) \| Recurring \| Asset-backed securities
AFS Securities:
Total AFS securities	0	0
Quoted Prices in Active Markets for Identical Assets (Level 1) \| Recurring \| Municipal bonds
AFS Securities:
Total AFS securities	0	0
Quoted Prices in Active Markets for Identical Assets (Level 1) \| Recurring \| Corporate bonds
AFS Securities:
Total AFS securities	0	0
Quoted Prices in Active Markets for Identical Assets (Level 1) \| Nonrecurring
Impaired loans
Total impaired loans		0
Quoted Prices in Active Markets for Identical Assets (Level 1) \| Nonrecurring \| Real estate construction and development
Impaired loans
Real estate mortgage		0
Quoted Prices in Active Markets for Identical Assets (Level 1) \| Nonrecurring \| Other real estate owned
Impaired loans
Real estate mortgage		0
Significant Other Observable Inputs (Level 2)
Impaired loans
Total	161,732	82,341
Description of Liabilities
Junior subordinated debt	0	0
Total	0	0
Significant Other Observable Inputs (Level 2) \| Recurring
AFS Securities:
Total AFS securities	161,732	82,341
Marketable equity securities	0	0
Description of Liabilities
Junior subordinated debt	0	0
Significant Other Observable Inputs (Level 2) \| Recurring \| U.S. Government agencies
AFS Securities:
Total AFS securities	36,038	33,710
Significant Other Observable Inputs (Level 2) \| Recurring \| U.S. Government collateralized mortgage obligations
AFS Securities:
Total AFS securities	65,032	38,445
Significant Other Observable Inputs (Level 2) \| Recurring \| Asset-backed securities
AFS Securities:
Total AFS securities	4,696	3,909
Significant Other Observable Inputs (Level 2) \| Recurring \| Municipal bonds
AFS Securities:
Total AFS securities		1,058
Significant Other Observable Inputs (Level 2) \| Recurring \| Corporate bonds
AFS Securities:
Total AFS securities	5,509	5,219
Significant Other Observable Inputs (Level 2) \| Nonrecurring
Impaired loans
Total impaired loans		0
Significant Other Observable Inputs (Level 2) \| Nonrecurring \| Real estate construction and development
Impaired loans
Real estate mortgage		0
Significant Other Observable Inputs (Level 2) \| Nonrecurring \| Other real estate owned
Impaired loans
Real estate mortgage		0
Significant Unobservable Inputs (Level 3)
Impaired loans
Total	0	8,368
Description of Liabilities
Junior subordinated debt	11,295	10,924
Total	11,295	$ 10,924
Significant Unobservable Inputs (Level 3) \| Real estate construction and development \| Fair Value of Collateral Method for Collateral Dependent Loans
Impaired loans
Adjustment Percentage		0.0702
Significant Unobservable Inputs (Level 3) \| Other real estate owned \| Fair Value of Collateral Method for Collateral Dependent Loans
Impaired loans
Adjustment Percentage		0.1369
Significant Unobservable Inputs (Level 3) \| Recurring
AFS Securities:
Total AFS securities	0	$ 0
Marketable equity securities	0	0
Description of Liabilities
Junior subordinated debt	11,295	10,924
Significant Unobservable Inputs (Level 3) \| Recurring \| U.S. Government agencies
AFS Securities:
Total AFS securities	0	0
Significant Unobservable Inputs (Level 3) \| Recurring \| U.S. Government collateralized mortgage obligations
AFS Securities:
Total AFS securities	0
Significant Unobservable Inputs (Level 3) \| Recurring \| Asset-backed securities
AFS Securities:
Total AFS securities	0
Significant Unobservable Inputs (Level 3) \| Recurring \| Municipal bonds
AFS Securities:
Total AFS securities	0
Significant Unobservable Inputs (Level 3) \| Recurring \| Corporate bonds
AFS Securities:
Total AFS securities	$ 0	0
Significant Unobservable Inputs (Level 3) \| Nonrecurring
Impaired loans
Total impaired loans		3,364
Significant Unobservable Inputs (Level 3) \| Nonrecurring \| Real estate construction and development
Impaired loans
Real estate mortgage		3,364
Significant Unobservable Inputs (Level 3) \| Nonrecurring \| Other real estate owned
Impaired loans
Real estate mortgage		$ 5,004

Impaired Financing Receivable, Fair Value Disclosure [Abstract]

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