Leases and Commitments Leases and Commitments (ASC 842 Quantitative Information) (Details) - USD ($)	12 Months Ended
	Jan. 31, 2025	Jan. 31, 2024
Commitments and Contingencies Disclosure [Abstract]
Operating lease cost	$ 7,544,000	$ 5,099,000
Short-term lease cost	536,000	421,000
Sublease income	(40,000)	(40,000)
Variable lease cost	1,570,000	983,000
Total lease cost	9,610,000	6,463,000
Cash paid for amounts included in the measurement of lease liabilities (in thousands)	6,522,000	5,793,000
Right-of-use assets obtained in exchange for new lease liabilities (in thousands)	$ 34,456,000	$ 873,000
Weighted-average remaining lease term (years)	5 years 6 months	1 year 6 months
Weighted-average discount rate	9.80%	6.36%