Note 4 - Subordinated Notes Receivable - Reconciliation of the Activity (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Balance		$ 3,271
Discount, balance		(1,388)
Balance, Net		1,883
Impairment, discount	$ (992)
Impairment	(992)	(701)
Balance	3,081
Discount, balance	(3,081)
Balance, Net	0
Second A&R Note [Member]
Balance	3,081
Discount, balance	(2,089)
Balance, Net	$ 992
Principal payments, principal		(190)
Principal payments		(190)
Impairment, discount		(701)
Impairment		(701)
Balance		3,081
Discount, balance		(2,089)
Balance, Net		$ 992