Stockholders' Equity - Warrants to Purchase Common Shares - Additional Information (Detail) - Senior Secured Term Loan [Member] - Warrants [Member] - $ / shares			6 Months Ended
	Jun. 26, 2018	Mar. 28, 2018	Jun. 30, 2022
SWK [Member]
Class Of Stock [Line Items]
Warrants issued to purchase shares of common stock	7,773	40,910
Exercise price of issued warrants	$ 19.30	$ 11.00
Warrants exercise period	7 years	7 years
Investor [Member]
Class Of Stock [Line Items]
Weighted average remaining life of lender warrants			2 years 9 months 18 days