Note 2 - Subordinated Notes Receivable - Reconciliation of the Activity (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Mar. 31, 2020	Jun. 30, 2020	Jun. 30, 2019
Interest paid-in-kind			$ (25,000)
Second A&R Note [Member]
Principal		$ 2,564,000	2,564,000
Discount, balance		(1,855,000)	(1,855,000)
Balance		709,000	709,000
Interest paid-in-kind, principal		25,000
Interest paid-in-kind		25,000
Gain on settlement of debt, principal		(529,000)
Gain on settlement of debt, discount		1,855,000
Gain on settlement of debt		1,326,000
Principal payments, principal		(2,060,000)
Principal payments		(2,060,000)
Principal
Discount, balance
Balance				$ 1,300,000
S&L Subordinated Notes Receivable [Member]
Principal	3,327,000	3,329,000	3,329,000
Discount, balance	(622,000)	(659,000)	(659,000)
Balance	2,705,000	2,670,000	2,670,000
Principal payments, principal		(2,000)
Principal payments		(2,000)
Principal	3,327,000	3,327,000	3,327,000
Discount, balance	(583,000)	(622,000)	(583,000)
Balance	2,744,000	2,705,000	$ 2,744,000
Accretion of discount	39,000	37,000
Accretion of discount	$ 39,000	$ 37,000