Restructuring Charges - Additional Information (Detail) $ in Thousands |
1 Months Ended | 12 Months Ended | |
|---|---|---|---|
|
Apr. 30, 2014
Employees
|
Feb. 28, 2014 |
Dec. 31, 2014
USD ($)
|
|
| Restructuring Cost and Reserve [Line Items] | |||
| Severance costs | $ 499 | ||
| Southbridge Manufacturing Facility [Member] | |||
| Restructuring Cost and Reserve [Line Items] | |||
| Percentage of reduction in workforce | 10.00% | ||
| Severance costs | 400 | ||
| Employee Severance [Member] | |||
| Restructuring Cost and Reserve [Line Items] | |||
| Severance costs | $ 100 | ||
| Employees terminated | Employees | 7 | ||