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Note 11 - Related Party Transactions (Details Textual)
3 Months Ended
May 26, 2017
USD ($)
ft²
Mar. 31, 2022
USD ($)
Mar. 31, 2021
USD ($)
Outside Counsel [Member]      
Legal Fees   $ 0 $ 100,000
Accounts Payable, Related Parties   0  
MacAndrews and Forbes Incorporated [Member] | The New HQ Lease [Member]      
Lessee, Operating Lease, Term of Contract (Year) 10 years    
Area of Real Estate Property (Square Foot) | ft² 3,200    
Monthly Rent During Initial Period $ 25,333    
Monthly Rent, Initial Period (Month) 63 months    
Monthly Rent After Initial Period $ 29,333    
Monthly Facility Fee, Second Year $ 3,333    
Monthly Facility Fee, Yearly Rate Increase After Second Year 5.00%    
Monthly Facility Fee, Final Year $ 4,925    
Operating Lease, Expense   $ 100,000