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Note 5 - Loans Receivable From Property Development Projects (Details Textual) - Dec. 31, 2021 $ in Thousands, ¥ in Millions | USD ($) | CNY (¥)
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Short-term loan, before Allowance for Credit Loss, Current | $ 314 | ¥ 2
Short-term loan, Allowance for Credit Loss, Current | 314 |
Short-term loan, before Allowance for Credit Loss, Noncurrent | $ 784 | ¥ 5

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