Note 14 - Certain Relationships and Related Transactions (Details Textual) - USD ($)	1 Months Ended	3 Months Ended		6 Months Ended		12 Months Ended	24 Months Ended
	Aug. 31, 2021	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022	Dec. 31, 2014	Dec. 31, 2014	Dec. 31, 2022	Mar. 31, 2022	Dec. 31, 2021
Net Income (Loss) Attributable to Noncontrolling Interest		$ 52,000	$ 80,000	$ 174,000	$ 218,000
Avalon Med Spa [Member]
Noncontrolling Interest, Ownership Percentage by Parent		50.10%		50.10%				50.10%
Investment in Subsidiary [Member] | Management and Accredited Investors [Member]
Related Party Transaction, Amounts of Transaction							$ 1,000,000.0
Investment in Subsidiary [Member] | Outside Director, Accredited Investor [Member] | Maximum [Member]
Related Party Transaction, Percentage of Total Investment	10.00%
AWMS Holdings, LLC [Member]
Equity Method Investments						$ 3,400,000	$ 3,400,000
Proceeds from Issuance of Private Placement						$ 3,800,000
Equity Method Investment, Ownership Percentage		47.00%		47.00%				47.00%
Net Income (Loss) Attributable to Noncontrolling Interest		$ 34,000,000	10,000,000	$ 103,000,000	72,000,000
Avalon Med Spa [Member]
Equity Method Investments										$ 359,000
Net Income (Loss) Attributable to Noncontrolling Interest		$ 18,000	$ 70,000	$ 71,000	$ 146,000
Equity Method Investments, Additional									$ 143,000
Avalon Med Spa [Member] | Accredited Investors [Member]
Proceeds from Issuance of Private Placement	$ 358,000
Equity Method Investments, Additional									$ 142,000