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Note 16 - Leases (Details Textual) - USD ($)
Mar. 31, 2023
Dec. 31, 2022
Mar. 31, 2022
May 06, 2021
Feb. 29, 2020
Finance Lease, Right-of-Use Asset, after Accumulated Amortization, Total $ 1,000.0        
Finance Lease, Right-of-Use Asset, Accumulated Amortization 12,200        
Property and Equipment, Net [Member]          
Finance Lease, Right-of-Use Asset, after Accumulated Amortization, Total $ 1,000   $ 8,000    
Neeltran Inc. [Member]          
Lessee, Finance Lease, Term of Contract (Month)         39 months
Neeltran Inc. [Member] | Property and Equipment, Net [Member]          
Finance Lease, Right-of-Use Asset, after Accumulated Amortization, Total       $ 13,200  
Maximum [Member]          
Lessee, Operating Lease, Renewal Term (Year)   5 years