Summary of Business and Significant Accounting Policies (Accumulated Other Comprehensive Loss) (Details) - USD ($) $ in Thousands	12 Months Ended
	Jan. 31, 2024	Jan. 31, 2023
Accumulated Other Comprehensive Loss [Roll Forward]
Balance as of beginning of year	$ (2,360)	$ (6,029)
Other comprehensive income before reclassifications	679	3,162
Amounts reclassified from accumulated comprehensive loss	371	507
Net current period other comprehensive income	1,050	3,669
Balance as of end of year	$ (1,310)	$ (2,360)