Stockholders' Equity - Warrants to Purchase Common Shares - Additional Information (Detail) - $ / shares		9 Months Ended
	Mar. 28, 2018	Mar. 31, 2018	Mar. 31, 2017
Class of Stock [Line Items]
Warrants issued in connection with term loan facility		409,091	0
Weighted average exercise price of warrant issued		$ 1.10	$ 0.00
Senior Secured Term Loan [Member] | Warrants [Member]
Class of Stock [Line Items]
Warrants issued in connection with term loan facility		409,091
Weighted average exercise price of warrant issued		$ 1.10
Warrants exercise period	7 years	7 years