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Loans and Allowance for Credit Losses - Loans - Impaired Financing Receivables (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2021 | Dec. 31, 2020
Financing Receivable, Impaired [Line Items] |  |
Recorded Investment with specific reserves | $ 26 | $ 28
Unpaid Principal Balance with specific reserves | 36 | 39
Interest Income Recognized with specific reserves | 2 | 2
Specific Reserve with specific reserves | 10 | 11
Average Recorded Investment | 49 | 50
Recorded Investment with no specific reserve |  | 4,876
Unpaid Principal Balance with no specific reserve |  | 5,027
Interest Income Recognized with no specific reserve |  | 199
Specific Reserve | 10,000 | 11,000
Average Recorded Investment with no specific reserve |  | 5,129
Real Estate Loan |  |
Financing Receivable, Impaired [Line Items] |  |
Recorded Investment with specific reserves | 26 | 28
Unpaid Principal Balance with specific reserves | 36 | 39
Interest Income Recognized with specific reserves | 2 | 2
Specific Reserve with specific reserves | 10 | 11
Average Recorded Investment | 49 | 50
Recorded Investment with no specific reserve | 87 |
Unpaid Principal Balance with no specific reserve | 87 |
Interest Income Recognized with no specific reserve | 3 |
Average Recorded Investment with no specific reserve | 98 |
Commercial and Industrial |  |
Financing Receivable, Impaired [Line Items] |  |
Recorded Investment with no specific reserve | 71 |
Unpaid Principal Balance with no specific reserve | 71 |
Interest Income Recognized with no specific reserve | 1 |
Average Recorded Investment with no specific reserve | 71 |
Consumer Loans |  |
Financing Receivable, Impaired [Line Items] |  |
Recorded Investment with no specific reserve | 143 | 151
Unpaid Principal Balance with no specific reserve | 143 | 151
Interest Income Recognized with no specific reserve | 8 | 14
Average Recorded Investment with no specific reserve | 181 | 270
Single-family | Real Estate Loan |  |
Financing Receivable, Impaired [Line Items] |  |
Recorded Investment with specific reserves | 26 | 28
Unpaid Principal Balance with specific reserves | 36 | 39
Interest Income Recognized with specific reserves | 2 | 2
Specific Reserve with specific reserves | 10 | 11
Average Recorded Investment | 49 | 50
Recorded Investment with no specific reserve | 87 |
Unpaid Principal Balance with no specific reserve | 87 |
Interest Income Recognized with no specific reserve | 3 |
Average Recorded Investment with no specific reserve | 98 |
Commercial | Real Estate Loan |  |
Financing Receivable, Impaired [Line Items] |  |
Recorded Investment with no specific reserve |  | 4,493
Unpaid Principal Balance with no specific reserve |  | 4,493
Interest Income Recognized with no specific reserve |  | 185
Average Recorded Investment with no specific reserve |  | 4,315
SBA Guaranty | Commercial and Industrial |  |
Financing Receivable, Impaired [Line Items] |  |
Recorded Investment with no specific reserve | 71 |
Unpaid Principal Balance with no specific reserve | 71 |
Interest Income Recognized with no specific reserve | 1 |
Average Recorded Investment with no specific reserve | 71 |
Consumer and Indirect | Consumer Loans |  |
Financing Receivable, Impaired [Line Items] |  |
Specific Reserve with specific reserves |  | 11
Recorded Investment with no specific reserve |  | 34
Unpaid Principal Balance with no specific reserve |  | 34
Interest Income Recognized with no specific reserve |  | 4
Average Recorded Investment with no specific reserve |  | 43
Automobile | Consumer Loans |  |
Financing Receivable, Impaired [Line Items] |  |
Recorded Investment with no specific reserve | 143 | 117
Unpaid Principal Balance with no specific reserve | 143 | 117
Interest Income Recognized with no specific reserve | 8 | 10
Average Recorded Investment with no specific reserve | 181 | $ 227
Home Equity Portfolio Segment [Member] |  |
Financing Receivable, Impaired [Line Items] |  |
Recorded Investment with no specific reserve | 301 |
Unpaid Principal Balance with no specific reserve | 301 |
Interest Income Recognized with no specific reserve | 12 |
Average Recorded Investment with no specific reserve | $ 350 |

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- Definition Amount of valuation allowance for financing receivables that are expected to be uncollectible that were individually evaluated for impairment. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (g) -URI http://asc.fasb.org/extlink&oid=123577603&loc=SL6953423-111524 + Details
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