Basis of Presentation and Principles of Consolidation - Additional Information (Details) $ / shares in Units, BRL in Millions				1 Months Ended	3 Months Ended		9 Months Ended		12 Months Ended
	Jun. 02, 2017 USD ($)	May 30, 2017 USD ($) $ / shares shares	May 05, 2017	Apr. 30, 2016	May 26, 2017 USD ($) Customer Supplier	May 27, 2016 USD ($)	May 26, 2017 USD ($) Customer Supplier	May 27, 2016 USD ($)	Aug. 26, 2016 USD ($)	Aug. 26, 2016 BRL	May 26, 2017 BRL Customer Supplier	Aug. 26, 2016 BRL	Aug. 28, 2015 USD ($)
Basis Of Presentation And Principles Of Consolidation [Line Items]
Stockholders reverse share split, description							1-for-3 reverse share split
Reverse stock split ratio			0.33
Goodwill					$ 45,360,000		$ 45,360,000		$ 44,976,000				$ 43,594,000
Goodwill impairment							0
Amortization expense related to intangible assets					2,998,000	$ 3,329,000	8,968,000	$ 9,947,000
Impairment of long-lived assets							0	0
Restructuring costs							500,000		1,100,000
Restructuring costs payable					100,000		100,000
Foreign exchange gains (losses)					(1,009,000)	1,807,000	(747,000)	255,000
Repayment of outstanding loans					$ 5,954,000	4,163,000	$ 17,689,000	12,448,000
Subsequent Event | Senior Secured Credit Agreement
Basis Of Presentation And Principles Of Consolidation [Line Items]
warrants issued, net exercised into ordinary shares | shares		1,536,955
Subsequent Event | Senior Secured Credit Agreement | Term Loan
Basis Of Presentation And Principles Of Consolidation [Line Items]
Repayment of outstanding loans	$ 61,100,000
Initial Public Offering | Subsequent Event
Basis Of Presentation And Principles Of Consolidation [Line Items]
Issuance of ordinary shares | shares		6,095,000
Sales of stock price, per share | $ / shares		$ 11.00
Proceeds from issuance initial public offering		$ 61,100,000
Underwriters’ Overallotment Option | Subsequent Event
Basis Of Presentation And Principles Of Consolidation [Line Items]
Issuance of ordinary shares | shares		795,000
Credit Concentration Risk
Basis Of Presentation And Principles Of Consolidation [Line Items]
Number of customers | Customer					4		4				4
Supplier Concentration Risk
Basis Of Presentation And Principles Of Consolidation [Line Items]
Number of suppliers | Supplier					5		5				5
Accounts payable and accrued liabilities					$ 166,400,000		$ 166,400,000		164,800,000
Inventory purchases					300,000,000	300,000,000	900,000,000	900,000,000
Minimum
Basis Of Presentation And Principles Of Consolidation [Line Items]
Lease commitments					12,000,000		12,000,000
Prepaid Expenses and Other Current Assets
Basis Of Presentation And Principles Of Consolidation [Line Items]
Deferred IPO costs					2,200,000		2,200,000
ICMS
Basis Of Presentation And Principles Of Consolidation [Line Items]
Tax credits					12,700,000		12,700,000		12,200,000		BRL 40.5	BRL 39.5
Tax credits, subject to vesting					1,000,000		$ 1,000,000		$ 2,000,000		3.1	6.4
Tax credits, vesting period							48 months		48 months	48 months
Tax credits, valuation adjustment									$ 900,000	BRL 3.0
ICMS | Brazilian Tax Authorities | Minimum
Basis Of Presentation And Principles Of Consolidation [Line Items]
Sale of excess credits period				24 months
ICMS | Brazilian Tax Authorities | Maximum
Basis Of Presentation And Principles Of Consolidation [Line Items]
Sale of excess credits period				36 months
ICMS | Earliest Tax Year
Basis Of Presentation And Principles Of Consolidation [Line Items]
Excess credits to be recovered, year							2017
ICMS | Latest Tax Year
Basis Of Presentation And Principles Of Consolidation [Line Items]
Excess credits to be recovered, year							2022
ICMS | Other Noncurrent Assets
Basis Of Presentation And Principles Of Consolidation [Line Items]
Tax credits, vested					11,700,000		$ 11,700,000		10,200,000		37.4	33.1
Tax credits, subject to vesting					300,000		300,000		900,000		0.9	2.9
ICMS | Prepaid Expenses and Other Current Assets
Basis Of Presentation And Principles Of Consolidation [Line Items]
Tax credits, subject to vesting					700,000		$ 700,000		$ 1,100,000		BRL 2.2	BRL 3.5
SMART Brazil | ICMS
Basis Of Presentation And Principles Of Consolidation [Line Items]
Tax benefit, renewal period							2 years
Brazilian Operating Subsidiaries
Basis Of Presentation And Principles Of Consolidation [Line Items]
Foreign exchange gains (losses)					$ (1,000,000)	$ 1,800,000	$ (700,000)	$ 300,000