Lease Obligations, Other Commitments, and Contingencies - Schedule of Gross Amount Assets and Liabilities Related to Operating and Finance Leases (Details) - USD ($) $ in Thousands	Nov. 30, 2019	Jun. 01, 2019
Lease Type
Operating lease ROU asset	$ 3,544
Finance lease ROU asset	447
Total Lease ROU asset	3,991
Operating lease liability current	1,476
Finance lease liability current	152
Total lease liability current	1,628
Operating lease liability non-current	2,189
Finance lease liability non-current	248
Total lease liability non-current	$ 2,437