Leases - ASC 842 Minimum Lease Payments (Details)	Jul. 23, 2024 USD ($) ft²	Jul. 31, 2025 USD ($)	Jan. 31, 2025 USD ($)	Jul. 31, 2024 USD ($)
Lessee, Lease, Description [Line Items]
Remaining of 2026		$ 3,450,000
2027		9,710,000
2028		9,447,000
2029		9,610,000
2030		9,945,000
Thereafter		6,832,000
Remaining balance of lease payments		48,994,000
Short-term lease liabilities		4,790,000	$ 1,673,000	$ 1,431,000
Long-term lease liabilities (a)		33,096,000	36,007,000	37,204,000
Total lease liabilities		37,886,000
Difference between undiscounted cash flows and discounted cash flows		11,108,000
Operating lease right-of-use assets		$ 33,019,000	$ 35,593,000	$ 37,988,000
Office, Manufacturing and Warehouse Facility
Lessee, Lease, Description [Line Items]
Total lease liabilities	$ 33,000,000
Area of lease | ft²	560,000
Lessee, operating lease, term of contract	65 months
Lessee, operating lease, rent abatement period	5 months
Lessee, operating lease, tenant improvement allowance	$ 1,700,000
Operating lease right-of-use assets	33,000,000
October 1, 2025 Through April 30, 2026 | Office, Manufacturing and Warehouse Facility
Lessee, Lease, Description [Line Items]
Lessee, operating lease, base rent	$ 726,700
After April 30, 2026 | Office, Manufacturing and Warehouse Facility
Lessee, Lease, Description [Line Items]
Lessee, operating lease, base rent annual increase	3.50%