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Income Taxes (Tables)
 6 Months Ended
Jul. 31, 2024
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):
   Six Months Ended
July 31,		 
   2024   2023 
         
Unrecognized tax benefits, beginning of period  $18,965   $19,088 
Changes for prior years’ tax positions   14    3 
Changes for current year tax positions   -    - 
Unrecognized tax benefits, end of period  $18,979   $19,091