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Note N - Commitments and Contingencies (Details Textual) - USD ($)
$ in Thousands
Mar. 31, 2024
Dec. 31, 2023
Sep. 30, 2023
Sep. 18, 2023
Mar. 31, 2023
Jan. 31, 2023
Cash $ 9,149 $ 11,134        
Asset Pledged as Collateral [Member] | Appeals Bond [Member]            
Cash         $ 700  
Complaint Against Legacy MIC Seeking Advancement of Indemnification Expenses [Member] | Pending Litigation [Member]            
Loss Contingency, Estimate of Possible Loss       $ 1,200    
Alleged Commission for Proposed Sale of Fort Worth Taylor Parking Facility [Member] | Pending Litigation [Member]            
Loss Contingency, Estimate of Possible Loss           $ 700
Arbitration With One Vendor Regarding Disputes Over Amounts Payable [Member] | Pending Litigation [Member]            
Loss Contingency, Estimate of Possible Loss     $ 1,800