Quarterly report pursuant to Section 13 or 15(d)

Note 5 - Financings (Details Textual)

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Note 5 - Financings (Details Textual) - USD ($)
$ in Thousands
May 06, 2022
Jan. 31, 2024
Jan. 31, 2023
Jul. 29, 2022
Jun. 30, 2022
Jan. 31, 2022
Dec. 31, 2021
Dec. 20, 2021
Long-Term Line of Credit, Total         $ 1,000   $ 0  
Revolving Credit Facility [Member]                
Line of Credit Facility, Maximum Borrowing Capacity $ 30,000              
Debt Instrument, Minimum Variable Rate 4.75%              
Long-Term Line of Credit, Total         1,000      
Revolving Credit Facility [Member] | Subsequent Event [Member]                
Line of Credit Facility, Maximum Borrowing Capacity       $ 90,000        
Revolving Credit Facility [Member] | Base Rate [Member]                
Debt Instrument, Basis Spread on Variable Rate 1.00%              
Revolving Credit Facility [Member] | Fixed Interest Rate For First Three Years [Member]                
Debt Instrument, Interest Rate, Stated Percentage 5.65%              
Potential Expansion of Borrowing Capacity for Additional Lenders [Member] | Revolving Credit Facility [Member]                
Line of Credit Facility, Maximum Borrowing Capacity $ 100,000              
Loans Payable [Member]                
Debt Instrument, Face Amount               $ 3,800
Debt Instrument, Interest Rate, Stated Percentage               4.00%
Debt Instrument, Annual Principal Payment           $ 1,800    
Long-Term Debt, Total         2,000      
Debt Instrument, Unamortized Discount, Total         $ 27,100      
Loans Payable [Member] | Forecast [Member]                
Debt Instrument, Annual Principal Payment   $ 1,000 $ 1,000