Lease Obligations - Schedule of Components of Lease Cost (Details) - USD ($) $ in Thousands		3 Months Ended
		May 31, 2021	May 31, 2020
Leases [Abstract]
Operating lease cost	[1],[2]	$ 341	$ 243
Finance lease cost:
Amortization of right of use assets	[2]	121	169
Interest on lease liabilities	[3]	4	9
Total finance lease cost		$ 125	$ 178

[1] Includes immaterial amounts related to variable rent expense.

[2] Recorded within Selling, General and administrative, Engineering and technical support, and Cost of sales on the Unaudited Consolidated Statement of Operations and Comprehensive Income.

[3] Recorded within Interest and bank charges on the Unaudited Consolidated Statement of Operations and Comprehensive Income.