Basis of Presentation - Additional Information (Detail) - USD ($) $ in Thousands |
12 Months Ended | |||||
|---|---|---|---|---|---|---|
Nov. 07, 2014 |
Jul. 22, 2014 |
Feb. 10, 2014 |
Dec. 31, 2014 |
Dec. 31, 2013 |
Dec. 31, 2015 |
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| Accounting Policies [Abstract] | ||||||
| Proceeds from equity offering, net of expenses | $ 34,800 | $ 11,500 | $ 4,800 | $ 51,118 | $ 5,201 | |
| Working capital | $ 19,700 | |||||
| Cash and cash equivalents, including restricted cash | 12 | |||||
| Net accounts receivable | $ 9,004 | $ 8,948 | ||||
| X | ||||||||||
- Definition Cash and cash equivalents, including restricted cash. No definition available.
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| X | ||||||||||
- Definition A financial calculation subtracting current liabilities from current assets. No definition available.
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- References No definition available.
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| X | ||||||||||
- Definition Amount due from customers or clients, within one year of the balance sheet date (or the normal operating cycle, whichever is longer), for goods or services (including trade receivables) that have been delivered or sold in the normal course of business, reduced to the estimated net realizable fair value by an allowance established by the entity of the amount it deems uncertain of collection. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition The cash inflow from the additional capital contribution to the entity. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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