Note 2 - Investments in and Advances to Local Limited Partnerships: Condensed Combined Balance Sheets of the Local Partnerships (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Assets
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	$ (2,635)	$ (2,546)	$ (2,458)
UnauditedMember
Assets
Land	345	345
Buildings and Improvements, Gross	2,909	2,907
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	(2,635)	(2,546)
Other Partnership Assets	219	144
Partnership Assets	838	850
Liabilities and Partners' Deficit:
Other Notes Payable	589	604
Other Liabilities	1,396	1,386
Partnership Equity (Deficit)	(1,147)	(1,140)
Partnership Liabilities and Equity (Deficit)	$ 838	$ 850