Intangible Assets - Schedule of Intangible Assets Subject to Amortization (Details) - USD ($) $ in Thousands		Aug. 31, 2019	Jun. 01, 2019
Finite-Lived Intangible Assets [Line Items]
Finite Lived Intangible Assets Gross		$ 4,450	$ 4,460
Finite Lived Intangible Assets Accumulated Amortization		1,754	1,697
Intangible assets, net		2,696	2,763
Trade Names
Finite-Lived Intangible Assets [Line Items]
Finite Lived Intangible Assets Gross		659	659
Finite Lived Intangible Assets Accumulated Amortization		659	659
Customer Relationships
Finite-Lived Intangible Assets [Line Items]
Finite Lived Intangible Assets Gross	[1]	3,384	3,394
Finite Lived Intangible Assets Accumulated Amortization		841	796
Non-compete Agreements
Finite-Lived Intangible Assets [Line Items]
Finite Lived Intangible Assets Gross		177	177
Finite Lived Intangible Assets Accumulated Amortization		144	139
Technology
Finite-Lived Intangible Assets [Line Items]
Finite Lived Intangible Assets Gross		230	230
Finite Lived Intangible Assets Accumulated Amortization		$ 110	$ 103

[1] Change from prior periods reflect impact of foreign currency translation.