| Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] |
| | Three Months Ended March 31, | | | Six Months Ended March 31, | |
| | 2026 | | | 2025 | | | 2026 | | | 2025 | |
Basic | | | | | | | | | | | | | | | | |
Net income (loss) | | $ | (2,448 | ) | | $ | 15,866 | | | $ | (2,512 | ) | | $ | 16,358 | |
Weighted average common shares outstanding | | | 3,071,656 | | | | 3,109,362 | | | | 3,071,656 | | | | 3,113,864 | |
Basic earnings (loss) per share | | $ | (0.80 | ) | | $ | 5.10 | | | $ | (0.82 | ) | | $ | 5.25 | |
| | | | | | | | | | | | | | | | |
Diluted | | | | | | | | | | | | | | | | |
Net income (loss) applicable to common stock | | $ | (2,448 | ) | | $ | 15,866 | | | $ | (2,512 | ) | | $ | 16,358 | |
Weighted average common shares outstanding | | | 3,071,656 | | | | 3,109,362 | | | | 3,071,656 | | | | 3,113,864 | |
Add: Restricted Stock Units | | | — | | | | 29,110 | | | | — | | | | 29,110 | |
Add: Series E Preferred Stock | | | — | | | | 239 | | | | — | | | | 239 | |
Assumed weighted average common shares outstanding | | | 3,071,656 | | | | 3,138,711 | | | | 3,071,656 | | | | 3,143,213 | |
Diluted earnings (loss) per share | | $ | (0.80 | ) | | $ | 5.05 | | | $ | (0.82 | ) | | $ | 5.20 | |
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