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Income Taxes (Tables)
 9 Months Ended
Oct. 31, 2023
Income Tax Disclosure [Abstract]  
Schedule of Unrecognized Tax Benefits Roll Forward [Table Text Block] A reconciliation of the beginning and ending amount of unrecognized tax benefits, including interest and penalties, is as follows (amounts in thousands):
   Nine Months Ended
October 31,		 
   2023   2022 
           
Unrecognized tax benefits, beginning of period  $19,088   $16,781 
Changes for prior years’ tax positions   9    94 
Changes for current year tax positions   
-
    
-
 
Unrecognized tax benefits, end of period  $19,097   $16,875