v3.26.1
Condensed Parent Company Only Financial Information - CONDENSED STATEMENT OF CASH FLOWS (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Cash Flows from Operating Activities    
Net Loss $ 4,088 $ (1,078)
Adjustments to Reconcile Net Loss to Net    
Increase in Other Assets 46 (95)
Increase in Other Liabilities (138) 141
Net Cash Provided by (Used in) Operating Activities 1,326 (1,054)
Cash Flows from Investing Activities    
Net Cash Used in Investing Activities (5,030) (27,484)
Cash Flows from Financing Activities    
(Repurchase) Net Proceeds from Issuance of Common Stock (2,944) 48,747
Net Cash Provided by (Used in) Financing Activities (360) 47,148
Net Increase (Decrease) in Cash and Cash Equivalents (4,064) 18,610
Cash and Cash Equivalents, Beginning of Year 37,916 19,306
Cash and Cash Equivalents, End of Year 33,852 37,916
Fifth District Bancorp, Inc | Fifth District Bancorp, Inc    
Cash Flows from Operating Activities    
Net Loss 4,088  
Adjustments to Reconcile Net Loss to Net    
Equity in Undistributed Losses of Subsidiary (4,235)  
Increase in Other Liabilities 55  
Net Cash Provided by (Used in) Operating Activities (92)  
Cash Flows from Investing Activities    
Investment In Subsidiary 355  
Net Cash Used in Investing Activities 355  
Cash Flows from Financing Activities    
(Repurchase) Net Proceeds from Issuance of Common Stock (2,944)  
Net Cash Provided by (Used in) Financing Activities (2,944)  
Net Increase (Decrease) in Cash and Cash Equivalents (2,681)  
Cash and Cash Equivalents, Beginning of Year 21,848  
Cash and Cash Equivalents, End of Year $ 19,167 $ 21,848