Lease Obligations - Schedule of Supplemental Balance Sheet Information Related to Leases (Details) - USD ($) $ in Thousands	May 31, 2022	Feb. 28, 2022
Operating Leases
Operating lease, right of use assets	$ 4,255	$ 4,464
Total operating lease right of use assets	4,255	4,464
Accrued expenses and other current liabilities	1,248	1,255
Operating lease liabilities, less current portion	3,067	3,298
Total operating lease liabilities	4,315	4,553
Finance Leases
Property, plant, and equipment, gross	2,503	2,503
Accumulated depreciation	(2,281)	(2,208)
Total finance lease right of use assets	$ 222	$ 295
Finance Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration]	Property, Plant and Equipment, Net	Property, Plant and Equipment, Net
Accrued expenses and other current liabilities	$ 190	$ 224
Finance lease liabilities, less current portion	39	78
Total finance lease liabilities	$ 229	$ 302
Weighted Average Remaining Lease Term
Operating leases	5 years 3 months 18 days	5 years 6 months
Finance leases	1 year 1 month 6 days	1 year 3 months 18 days
Weighted Average Discount Rate
Operating leases	3.89%	4.01%
Finance leases	3.87%	3.87%