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Note 8 - Commitments and Contingencies (Details Textual) - USD ($)
3 Months Ended 6 Months Ended
Aug. 11, 2022
May 17, 2021
Jun. 27, 2019
Apr. 12, 2016
Jun. 30, 2022
Jun. 30, 2021
Jun. 30, 2022
Jun. 30, 2021
Operating Lease, Expense         $ 5,250 $ 5,250 $ 10,500 $ 10,500
Proceeds from Divestiture of Businesses and Interests in Affiliates, Total             $ 0 $ 850,000
Woodmont [Member] | Mt. Melrose LLC [Member] | Disposal Group, Disposed of by Sale, Not Discontinued Operations [Member]                
Proceeds from Divestiture of Businesses and Interests in Affiliates, Total   $ 850,000       $ 850,000    
Mt. Melrose LLC [Member] | Woodmont [Member]                
Ownership Interest, Sold, Percent     65.00%          
Civil Action Complaint Against Frank Erhartic, Jr. [Member]                
Loss Contingency, Damages Sought, Value       $ 350,000        
Common Class A [Member] | Enterprise Diversified [Member] | Subsequent Event [Member]                
Conversion of Stock, Shares Issuable (in shares) 1