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Note 5 - Loans Receivable From Property Development Projects (Details Textual) $ in Thousands, ¥ in Millions | Sep. 30, 2025 USD ($) | Sep. 30, 2025 CNY (¥) | Jun. 30, 2014 USD ($)
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Financing Receivable, before Allowance for Credit Loss, Current | $ 274 | ¥ 2 |
Financing Receivable, Allowance for Credit Loss |  |  | $ 274
Financing Receivable, Allowance for Credit Losses, Current | $ 274 |  |

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