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Carver Bancorp Inc.- Parent Company Only-Condensed Statements of Cash Flow (Details) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 1994 | Mar. 31, 2022 | Mar. 31, 2021 | Mar. 31, 2003
Condensed Cash Flow Statements, Captions [Line Items] |  |  |  |
Net loss |  | $ (847) | $ (3,896) |
Increase (Decrease) in Other Operating Assets |  | (1,301) | 593 |
Increase (Decrease) in Other Operating Liabilities |  | 7,046 | 5,192 |
Net cash (used in) provided by operating activities |  | 7,152 | 2,212 |
Proceeds from Issuance of Long-term Debt |  |  |  | $ 13,000
Proceeds from Other Equity |  | 0 | 2,500 |
Payments for Repurchase of Common Stock |  | 0 | (2,500) |
Proceeds from Issuance of Common Stock | $ 21,500 | 2,998 | 3,197 |
Proceeds from Issuance of Preferred Stock and Preference Stock |  | 4,000 | 8,177 |
Proceeds from (Payments for) Other Financing Activities |  |  |  | $ 400
Net cash provided by financing activities |  | 57,354 | 102,823 |
Net increase (decrease) in cash and cash equivalents |  | (14,573) | 28,051 |
Parent Company |  |  |  |
Condensed Cash Flow Statements, Captions [Line Items] |  |  |  |
Net loss |  | (847) | (3,896) |
Equity in net loss from subsidiaries |  | 706 | (3,039) |
Increase in account receivable from subsidiaries |  | (205) | 164 |
Increase (Decrease) in Other Operating Assets |  | 92 | (38) |
Increase (decrease) in accounts payable to subsidiaries |  | (1,213) | 917 |
Increase (Decrease) in Other Operating Liabilities |  | (2,593) | 609 |
Net cash (used in) provided by operating activities |  | (5,062) | 467 |
Proceeds from Issuance of Long-term Debt |  | 2,500 | 0 |
Proceeds from Other Equity |  | (15,500) | 2,500 |
Payments for Repurchase of Common Stock |  | 0 | (2,500) |
Proceeds from Issuance of Common Stock |  | 2,999 | 3,197 |
Proceeds from Issuance of Preferred Stock and Preference Stock |  | 4,000 | 8,177 |
Proceeds from (Payments for) Other Financing Activities |  | 122 | 37 |
Net cash provided by financing activities |  | (5,879) | 11,411 |
Net increase (decrease) in cash and cash equivalents |  | (10,941) | 11,878 |
Cash and cash equivalents - beginning |  | 12,374 | 496 |
Cash and cash equivalents - end |  | $ 1,433 | $ 12,374 |

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