| Mar 31, 2013 | Mar 31, 2014 | Mar 31, 2015 | Mar 31, 2016 | Mar 31, 2017 | Mar 31, 2018 | Mar 31, 2019 | Mar 31, 2020 | Mar 31, 2021 | Mar 31, 2022 | Mar 31, 2023 |
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| Profit (loss) before income taxes | 350 | 482 | 592 | 468 | 725 | 872 | 706 | 505 | 1,090 | 1,138 | 549 |
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| Depreciation | 77 | 69 | 62 | 33 | 13 | 12 | 14 | 13 | 9 | 8 | 17 |
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| Loss (gain) on sale of investment securities | - | - | -2 | - | -68 | -171 | -225 | -165 | -396 | -293 | -47 |
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| Loss (gain) on valuation of investment securities | - | 26 | 7 | 200 | 28 | 167 | 265 | 466 | 342 | 12 | - |
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| Increase (decrease) in liability reserves | 1 | 258 | 40 | 118 | 246 | 6 | 2 | -42 | -12 | 16 | 221 |
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| Increase (decrease) in unearned revenue | - | - | - | - | - | - | - | - | - | -160 | 120 |
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| Increase (decrease) in provision for retirement benefits | 23 | -5 | 10 | 29 | -7 | -27 | 27 | -23 | 11 | 24 | 7 |
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| Increase (decrease) in provision for retirement benefits for directors (and other officers) | 18 | -6 | -51 | 17 | 3 | -24 | 19 | 13 | -12 | -4 | 15 |
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| Interest and dividend income | -314 | -418 | -408 | -402 | -420 | -406 | -454 | -468 | -407 | -357 | -402 |
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| Decrease (increase) in deferred guarantee fees | 24 | -51 | 16 | -16 | -74 | 104 | -25 | 29 | -45 | 123 | 40 |
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| Increase (decrease) in deposits received | 94 | -214 | -24 | 246 | -248 | 19 | 1 | -9 | 10 | -8 | -17 |
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| Other, net | -150 | -12 | 256 | 6 | 11 | 33 | 19 | -1 | 24 | 28 | -63 |
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| Subtotal | 103 | 81 | 559 | 721 | 214 | 522 | 466 | 436 | 487 | 526 | 439 |
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| Interest and dividends received | 294 | 365 | 407 | 427 | 425 | 410 | 502 | 452 | 407 | 351 | 395 |
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| Income taxes paid | -74 | -257 | -192 | -296 | -148 | -271 | -318 | -308 | -256 | -397 | -318 |
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| Net cash provided by (used in) operating activities | 323 | 189 | 774 | 852 | 491 | 662 | 649 | 580 | 638 | 480 | 517 |
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| Payments into time deposits | -340 | -140 | -40 | -40 | -40 | -40 | -40 | -40 | -2,040 | -3,140 | -2,040 |
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| Proceeds from withdrawal of time deposits | 340 | 340 | 140 | 40 | 40 | 40 | 40 | 40 | 40 | 3,140 | 4,040 |
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| Proceeds from sale and redemption of securities | 1,175 | 2,100 | 3,121 | 4,760 | 5,546 | 6,723 | 5,683 | 2,667 | 3,313 | 1,400 | 1,198 |
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| Purchase of investment securities | -1,504 | -5,270 | -2,854 | -3,905 | -3,192 | -7,007 | -6,786 | -5,149 | -4,562 | -5,642 | -6,084 |
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| Proceeds from sale and redemption of investment securities | 400 | 3,349 | 927 | 1,500 | 2,321 | 3,369 | 4,512 | 2,388 | 1,917 | 2,057 | 1,464 |
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| Purchase of non-current assets | -3 | -0 | -29 | -12 | - | -50 | -1 | -4 | -0 | -0 | -77 |
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| Loan advances | - | - | -0 | -1 | - | - | - | -5 | -41 | -2 | - |
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| Proceeds from collection of loans receivable | 9 | 12 | 20 | 8 | 6 | 6 | 6 | 6 | 15 | 8 | 9 |
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| Net cash provided by (used in) investing activities | 77 | -410 | 353 | 599 | 1,832 | -1,409 | -587 | -97 | -1,358 | -2,180 | -1,490 |
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| Dividends paid | -48 | -60 | -48 | -48 | -48 | -48 | -56 | -48 | -48 | -48 | -48 |
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| Net cash provided by (used in) financing activities | -48 | -60 | -48 | -48 | -48 | -48 | -56 | -48 | -48 | -48 | -48 |
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| Net increase (decrease) in cash and cash equivalents | 352 | -280 | 1,078 | 1,403 | 2,275 | -795 | 7 | 435 | -768 | -1,748 | -1,022 |
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