v3.26.1
Note 2 - Summary of Significant Accounting Policies (Details Textual) - USD ($)
$ in Millions
3 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Line of Credit, Current $ 22.2  
Interest Payable $ 5.5  
Revenue Benchmark [Member] | Product Concentration Risk [Member] | Parking Facilities, Operator, Metropolis Technologies Inc. [Member]    
Concentration Risk, Percentage 59.60% 55.90%
Revenue Benchmark [Member] | Product Concentration Risk [Member] | Parking Facilities, Operator, LAZ Parking [Member]    
Concentration Risk, Percentage 14.00% 13.80%
Revenue Benchmark [Member] | Product Concentration Risk [Member] | Interstate Parking [Member]    
Concentration Risk, Percentage 10.40% 9.80%
Revenue Benchmark [Member] | Product Concentration Risk [Member] | Cincinnati [Member]    
Concentration Risk, Percentage 20.80% 20.00%
Revenue Benchmark [Member] | Product Concentration Risk [Member] | Detroit [Member]    
Concentration Risk, Percentage 11.50% 11.00%
Revenue Benchmark [Member] | Product Concentration Risk [Member] | Chicago [Member]    
Concentration Risk, Percentage 10.20% 9.80%
Accounts Receivable [Member] | Customer Concentration Risk [Member] | Parking Facilities, Operator, Metropolis Technologies Inc. [Member]    
Concentration Risk, Percentage 38.40% 40.20%