Quarterly report pursuant to Section 13 or 15(d)

Commitments and Contingencies - Additional Information (Detail)

v3.10.0.1
Commitments and Contingencies - Additional Information (Detail)
1 Months Ended 6 Months Ended
Apr. 10, 2018
USD ($)
Mar. 31, 2015
USD ($)
Jun. 30, 2018
USD ($)
ft²
Feb. 28, 2018
Feb. 28, 2015
Commitment And Contingencies [Line Items]          
Area of corporate headquarters and manufacturing facility | ft²     57,000    
Extended lease term   Apr. 30, 2020      
Provisions for tenant improvement allowance, maximum   $ 400,000      
Capital lease agreement term for information technology equipment         30 months
Capital lease agreement extended additional lease term for information technology equipment       18 months  
Purchase commitments pending     $ 11,900,000    
Former President And Chief Executive Officer          
Commitment And Contingencies [Line Items]          
Severance payable $ 365,000        
Net reduction of stock-based compensation expense $ 300,000        
Description of post employment benefits     Mr. Flynn is entitled to receive severance in an amount of $365,000, payable through December 28, 2018, along with certain other benefits, including the continued vesting of all of Mr. Flynn’s time-based stock options through April 9, 2020 and an extension of the time to exercise such options through December 31, 2021, subject to immediate vesting upon a change of control, and continued vesting of the time-based RSUs granted to Mr. Flynn on February 6, 2017 through February 6, 2019, subject to immediate vesting upon a change of control. Any unvested stock options following April 9, 2020 will be cancelled and will not vest, and any RSUs that are unvested following February 6, 2019 will be canceled and will not vest. Due to the modification of Mr. Flynn’s equity awards, the Company recognized a net reduction of stock-based compensation expense of approximately $0.3 million, primarily due to the fluctuation in stock prices from the time the awards were granted to when Mr. Flynn resigned and the awards were re-evaluated.    
Employee Arrangements and Other Compensation          
Commitment And Contingencies [Line Items]          
Change in control, if occurs, may require severance benefits payable     $ 2,100,000    
Accrued for performance bonuses     $ 200,000