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Note 10 - Leases (Details Textual)
$ in Thousands, د.إ in Millions
 3 Months Ended 12 Months Ended
Apr. 30, 2024
USD ($)
Apr. 30, 2023
USD ($)
Jan. 31, 2024
AED (د.إ)
Jan. 31, 2024
USD ($)
Liabilities, Current [Abstract]        
Long-term Debt, Current Maturities, Excluding North American Revolving Line $ 6,099     $ 4,071
Assets [Abstract]        
Property, Plant and Equipment, Net 38,211     37,620
Liabilities, Noncurrent [Abstract]        
Liabilities, Noncurrent 25,173     25,991
Long-Term Debt, Excluding Current Maturities 4,069     4,229
Operating Lease, Liability 6,877     7,184
Operating Lease, Right-of-Use Asset 6,165     6,467
Finance Lease, Liability 103     $ 113
Finance Lease, Right-of-Use Asset, after Accumulated Amortization 400      
Operating Lease, Expense $ 600 $ 600    
Finance Lease, Liability, Current, Statement of Financial Position [Extensible Enumeration] Long-term Debt, Current Maturities, Excluding North American Revolving Line      
Finance Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration] Property, Plant and Equipment, Net      
Finance Lease, Liability, Noncurrent, Statement of Financial Position [Extensible Enumeration] Long-Term Debt, Excluding Current Maturities      
Minimum [Member]        
Lessee, Finance Lease, Term of Contract (Year) 1 year      
Maximum [Member]        
Lessee, Finance Lease, Term of Contract (Year) 30 years      
Abu Dhabi Land Lease [Member]        
Lessee, Operating Lease, Annual Payment $ 300   د.إ 1.2  
Decrease in Operating Lease Liability, Current 400      
Decrease in Operating Lease Liability, Noncurrent 6,000      
Decrease in Operating Lease Right-of-use Asset 5,500      
Decrease in Operating Lease Expense $ 1,100