Note 18 - Commitments and Contingencies (Details Textual) ¥ in Thousands, $ in Thousands	Mar. 31, 2024 USD ($)	Dec. 31, 2023 USD ($)	Aug. 30, 2023 USD ($)	Aug. 30, 2023 CNY (¥)	Jun. 30, 2023 USD ($)	Jun. 30, 2023 CNY (¥)	Aug. 30, 2022 USD ($)	Aug. 30, 2022 CNY (¥)
Equity Securities without Readily Determinable Fair Value, Amount	$ 794	$ 794
Guangdong Yong Fu Xiang Health Management Co., Ltd (Yong Fu Xiang) [Member]
Equity Securities Without Readily Determinable Fair Value, Percent	9.90%						9.90%	9.90%
Equity Securities without Readily Determinable Fair Value, Amount							$ 930	¥ 6,730
Wuhan Ju Liang [Member]
Equity Securities Without Readily Determinable Fair Value, Percent	9.90%				9.90%	9.90%
Equity Securities without Readily Determinable Fair Value, Amount					$ 140	¥ 990
Fu Meng Hui (Guangzhou) Management Consulting Co., Ltd. (“Fu Meng Hui”) [Member]
Equity Securities Without Readily Determinable Fair Value, Percent			9.00%	9.00%
Equity Securities without Readily Determinable Fair Value, Amount			$ 60	¥ 450