Schedule of Changes in Common Stock Outstanding (Parenthetical) (Detail) - USD ($) $ / shares in Units, $ in Thousands |
1 Months Ended | 12 Months Ended | |
|---|---|---|---|
May 31, 2016 |
Dec. 31, 2016 |
Dec. 31, 2015 |
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| Class of Stock [Line Items] | |||
| Offering price of common stock | $ 5.25 | ||
| Issuance of common stock, net of issuance fees | $ 15,200 | $ 16,192 | $ 8,960 |
| Issuance of common stock in a private placement | $ 1,000 | ||
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
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- 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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- Definition The cash inflow associated with the amount received from entity's raising of capital via private rather than public placement. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Price of a single share of a number of saleable stocks of a company. No definition available.
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