Lease Obligations, Other Commitments, and Contingencies - Additional Information (Details) - USD ($) $ in Thousands	3 Months Ended
	Sep. 01, 2018	Aug. 31, 2019	Jun. 02, 2019
Lessee Lease Description [Line Items]
Operating right-of-use assets		$ 3,643
Finance right-of-use assets		464
Operating lease liabilities		3,776
Finance lease liabilities		$ 443
Lease expense	$ 400
ASU 2016-02
Lessee Lease Description [Line Items]
Operating right-of-use assets			$ 3,600
Finance right-of-use assets			500
Operating lease liabilities			3,800
Finance lease liabilities			500
ASU 2016-02 | Adjustment
Lessee Lease Description [Line Items]
Existing deferred rent			$ 200