XML 51 R40.htm IDEA: XBRL DOCUMENT
v3.25.2

Loans Receivable and Allowance for Credit Losses - Allowance for Credit Losses (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2025 | Jun. 30, 2024 | Jun. 30, 2025 | Jun. 30, 2024
Allowance for Credit Losses |  |  |  |
Beginning Balance | $ 1,699 | $ 2,699 | $ 1,699 | $ 2,802
Recovery of Credit Loss |  | (1,000) |  | (1,100)
Loans Charged-Off |  |  |  | (3)
Ending Balance | 1,699 | 1,699 | 1,699 | 1,699
One-to-Four Family Mortgages |  |  |  |
Allowance for Credit Losses |  |  |  |
Beginning Balance | 1,441 | 2,454 | 1,526 | 2,554
Recovery of Credit Loss | (173) | (1,181) | (258) | (1,281)
Ending Balance | 1,268 | 1,273 | 1,268 | 1,273
Home Equity Loans/Lines of Credit |  |  |  |
Allowance for Credit Losses |  |  |  |
Beginning Balance | 43 | 54 | 45 | 57
Recovery of Credit Loss | 1 | 3 | (1) | 3
Loans Charged-Off |  |  |  | (3)
Ending Balance | 44 | 57 | 44 | 57
Construction Loans |  |  |  |
Allowance for Credit Losses |  |  |  |
Beginning Balance | 26 | 32 | 13 | 32
Recovery of Credit Loss |  | (25) | 13 | (25)
Ending Balance | 26 | 7 | 26 | 7
Consumer Loans |  |  |  |
Allowance for Credit Losses |  |  |  |
Beginning Balance | 27 | 9 | 28 | 9
Recovery of Credit Loss | (27) | (9) | (28) | (9)
Commercial Loans |  |  |  |
Allowance for Credit Losses |  |  |  |
Beginning Balance | 43 | 126 | 80 | 126
Recovery of Credit Loss | (10) | 19 | (47) | 19
Ending Balance | 33 | 145 | 33 | 145
Unallocated |  |  |  |
Allowance for Credit Losses |  |  |  |
Beginning Balance | 119 | 24 | 7 | 24
Recovery of Credit Loss | 209 | 193 | 321 | 193
Ending Balance | $ 328 | $ 217 | $ 328 | $ 217

X
- Definition Amount excluding accrued interest, of allowance for credit loss on financing receivable. Excludes net investment in lease. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 45 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479344/326-20-45-1 + Details
Name: | us-gaap_FinancingReceivableAllowanceForCreditLossExcludingAccruedInterest
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. + References No definition available. + Details
Name: | us-gaap_FinancingReceivableAllowanceForCreditLossesRollForward
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of writeoff of financing receivable, charged against allowance for credit loss. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 13 -Subparagraph (d) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479319/326-20-50-13 Reference 2: http://fasb.org/us-gaap/role/ref/otherTransitionRef -Topic 310 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 11B -Subparagraph (c)(3) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481962/310-10-50-11B Reference 3: http://www.xbrl.org/2003/role/exampleRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 79 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479294/326-20-55-79 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479319/326-20-50-6 + Details
Name: | us-gaap_FinancingReceivableAllowanceForCreditLossesWriteOffs
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount of credit loss expense (reversal of expense) on financing receivable from change in methodology. Excludes net investment in lease. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 11 -Subparagraph (e) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479319/326-20-50-11 + Details
Name: | us-gaap_FinancingReceivableChangeInMethodCreditLossExpenseReversal
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Details
Name: | us-gaap_FinancingReceivablePortfolioSegmentAxis=us-gaap_ResidentialPortfolioSegmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivablePortfolioSegmentAxis=fdsb_HomeEquityLoansOrLinesOfCreditMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivablePortfolioSegmentAxis=us-gaap_ConstructionLoansMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivablePortfolioSegmentAxis=us-gaap_ConsumerPortfolioSegmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivablePortfolioSegmentAxis=us-gaap_CommercialPortfolioSegmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivablePortfolioSegmentAxis=us-gaap_UnallocatedFinancingReceivablesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |