Note 5 - Loans Receivable From Property Development Projects (Details Textual) $ in Thousands, ¥ in Millions	Jun. 30, 2024 USD ($)	Jun. 30, 2024 CNY (¥)	Jun. 30, 2014 USD ($)
Financing Receivable, before Allowance for Credit Loss, Current	$ 275	¥ 2
Financing Receivable, Allowance for Credit Loss			$ 275
Financing Receivable, Allowance for Credit Losses, Current	275
Financing Receivable, before Allowance for Credit Loss, Noncurrent	$ 689	¥ 5

Amount of allowance for credit loss on financing receivable. Excludes allowance for financing receivable covered under loss sharing agreement.

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Name:	us-gaap_FinancingReceivableAllowanceForCreditLosses
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant