Allowance for Expected Credit Losses - Schedule of Allowance for Expected Credit Losses for Accounts Receivable and Contract Assets (Details) - USD ($) $ in Thousands	Jul. 31, 2026	Jan. 31, 2026
Credit Loss [Abstract]
Allowance for credit losses - accounts receivable	$ 989	$ 910
Allowance for credit losses - contract assets	$ 463	$ 216