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Note 15 - Noncontrolling Interests (Details Textual) - USD ($)
$ in Thousands
3 Months Ended
Apr. 30, 2024
Apr. 30, 2023
Jan. 31, 2024
Jun. 01, 2023
Assets $ 157,163   $ 155,711  
Net Income (Loss) Attributable to Noncontrolling Interest 347 $ 0    
Redeemable Noncontrolling Interest, Equity, Carrying Amount 7,033   6,266  
Gulf Insulation Group [Member]        
Net Income (Loss) Attributable to Noncontrolling Interest 300 $ 0    
Redeemable Noncontrolling Interest, Equity, Carrying Amount 7,000   $ 6,300  
Noncontrolling Interest, Increase from Business Combination 400      
Related Party [Member]        
Financing Receivable, after Allowance for Credit Loss       $ 4,200
Assets 26,300      
Liabilities $ 17,700      
Gulf Insulation Group [Member] | Related Party [Member]        
Notes Payable       $ 2,800
Joint Venture [Member]        
Subsidiary, Ownership Percentage, Parent       60.00%
Joint Venture [Member] | Gulf Insulation Group [Member]        
Subsidiary, Ownership Percentage, Parent       40.00%
Property, Plant, and Equipment, Fair Value Disclosure       $ 6,800