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Note 3 - Statements of Net Assets in Liquidation (Details Textual) - USD ($)
 12 Months Ended 27 Months Ended 36 Months Ended
Dec. 31, 2019
Dec. 31, 2021
Dec. 31, 2021
Dec. 31, 2018
Dec. 31, 2017
Liquidation Basis of Accounting, Common Stock Per Share $ 21.16        
Liquidation Basis of Accounting, Net Increase (Decrease) in Liquidation Value Per Share $ 3.05        
Cash and Cash Equivalents, at Carrying Value, Ending Balance $ 2,200,000        
Liquidation Basis of Accounting, Land Entitlement Costs Incurred 1,400,000        
Liquidation Basis of Accounting, Land Entitlement Costs Incurred, Amount Deferred 556,000        
Net Assets, Ending Balance 31,369,637        
Basis of Accounting, Liquidation [Member]          
Liquidation Basis of Accounting, Common Stock Per Share       $ 18.11  
Increase in Real Estate Value $ 12,100,000        
Increase in Real Estate Value, Per Share $ 8.14        
Increase in Expense Reserve $ 7,500,000        
Increase in Expense Reserve, Per Share $ 5.09        
Cash and Cash Equivalents, at Carrying Value, Ending Balance $ 2,213,205     $ 3,049,587  
Net Assets, Ending Balance $ 31,369,637     $ 26,846,670 $ 26,637,350
Common Stock, Shares, Outstanding, Ending Balance 1,482,680        
Forecast [Member]          
Liquidation Basis of Accounting, Land Entitlement Costs   $ 1,800,000      
Liquidation Basis of Accounting, Land Entitlement Costs Incurred     $ 1,800,000