Note 8 - Noncontrolling Interest - Clyra Medical - Summary of Accounts Payable and Accrued Expenses (Details) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Accounts payable	$ 1,473	$ 1,212
Accrued payroll	29	251
Accrued interest		25
Accounts payable and accrued expenses, total	1,502	1,488
Clyra Medical [Member]
Accounts payable	495	135
Accrued dividend	414	242
Accrued payroll	14	7
Accrued interest	16	13
Accounts payable and accrued expenses, total	$ 939	$ 397