Note 4 - Subordinated Notes Receivable - Reconciliation of the Activity (Details) - USD ($)	3 Months Ended	12 Months Ended
	Jun. 30, 2019	Dec. 31, 2019	Dec. 31, 2018
Interest paid-in-kind			$ (337,000)
Impairment		(897,000)
Second A&R Note [Member]
Principal		3,376,000
Discount, balance		(1,012,000)
Balance		2,364,000
New borrowings on subordinated note receivables, principal			7,421,000
New borrowings on subordinated note receivables, discount			(2,607,000)
New borrowings on subordinated note receivables			4,814,000
Interest paid-in-kind, principal			337,000
Interest paid-in-kind			337,000
Extinguishment of debt, principal			(4,400,000)
Extinguishment of debt, discount			1,330,000
Extinguishment of debt			(3,070,000)
Capitalized legal fees, principal			18,000
Capitalized legal fees			18,000
Accretion of discount, discount		54,000	265,000
Accretion of discount		54,000	265,000
Principal payments, principal		(812,000)
Principal payments		(812,000)
Impairment, principal
Impairment, discount		(897,000)
Impairment	$ (897,000)	(897,000)
Principal		2,564,000	3,376,000
Discount, balance, discount		(1,855,000)	(1,012,000)
Balance	$ 1,300,000	709,000	2,364,000
S&L Subordinated Notes Receivable [Member]
Principal		4,340,000
Discount, balance		(822,000)
Balance		3,518,000
New borrowings on subordinated note receivables, principal			4,400,000
New borrowings on subordinated note receivables, discount			(884,000)
New borrowings on subordinated note receivables			3,516,000
Accretion of discount, discount		163,000	62,000
Accretion of discount		163,000	62,000
Principal payments, principal		(1,011,000)	(60,000)
Principal payments		(1,011,000)	(60,000)
Principal		3,329,000	4,340,000
Discount, balance, discount		(659,000)	(822,000)
Balance		$ 2,670,000	$ 3,518,000