Note 7 - Investment Properties (Details Textual) ¥ in Thousands, $ in Thousands			3 Months Ended		9 Months Ended		12 Months Ended
	Feb. 01, 2023 USD ($)	Feb. 01, 2023 CNY (¥)	Mar. 31, 2024 USD ($)	Mar. 31, 2023 USD ($)	Mar. 31, 2024 USD ($)	Mar. 31, 2023 USD ($)	Jun. 30, 2010 USD ($)	Jun. 30, 2010 CNY (¥)	Mar. 31, 2024 CNY (¥)	Jun. 30, 2023 USD ($)	Jun. 30, 2023 CNY (¥)	Mar. 31, 2010 USD ($) m²	Mar. 31, 2010 CNY (¥) m²	Jun. 30, 2008 USD ($)	Jun. 30, 2008 CNY (¥)
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land			$ 894		$ 894				¥ 5,554	$ 894	¥ 5,554
TTCQ [Member]
Lease, Operating Lease, Number of Properties												2	2
Area of Real Estate Property | m²												311.99	311.99
Purchase Obligation												$ 648	¥ 4,025
Mao Ye [Member]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land														$ 894	¥ 5,554
Monthly Lease Revenue Amount	$ 2	¥ 14
Operating Lease, Lease Income			6	$ 0	18	$ 8
Depreciation			4	4	12	12
Jiang Huai [Member]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land			580		580				3,600	580	3,600
Operating Lease, Lease Income			0	0	0	0
Depreciation			6	7	18	20
Payments to Acquire Projects							$ 580	¥ 3,600
FuLi [Member]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land			647		647				¥ 4,025	$ 648	¥ 4,025
Operating Lease, Lease Income			0	3	1	7
Depreciation			7	7	21	22
CHINA
Operating Lease, Lease Income			6	3	19	15
Depreciation			$ 17	$ 18	$ 51	$ 54