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Subsequent Events - Additional Information (Detail) - USD ($) |  | 1 Months Ended | 3 Months Ended |  |
--- | --- | --- | --- | --- | ---
May. 06, 2016 | Apr. 30, 2016 | Mar. 31, 2016 | Mar. 31, 2016 | May. 05, 2016 | Dec. 31, 2015
Subsequent Event [Line Items] |  |  |  |  |  |  |
Proceeds from issuance of stock units |  |  |  |  | $ 7,102,225 |  |
Common stock, shares authorized | [1] |  |  | 200,000,000 | 200,000,000 |  | 200,000,000
Over-Allotment-Option [Member] |  |  |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |  |  |
Number of stock units issued |  |  |  | 333,338 |  |  |
Number of shares called by warrants |  |  |  | 416,672 | 416,672 |  |
Underwriting option exercise period |  |  |  | 45 days |  |  |
Subsequent Events [Member] |  |  |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |  |  |
Description of reverse stock split |  | One-for-twelve split of the Company’s issued and outstanding common stock |  |  |  |  |
Common stock, shares authorized |  | 200,000,000 |  |  |  | 225,000,000 |
Subsequent Events [Member] | Over-Allotment-Option [Member] |  |  |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |  |  |
Number of stock units issued |  |  | 41,667 |  |  |  |
Number of stock units issued, price per share |  |  | $ 3.60 |  |  |  |
Proceeds from issuance of stock units |  |  | $ 150,000 |  |  |  |
[1] | * Adjusted for the 1-for-12 reverse stock split as discussed in Note 1.

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- Definition Number of securities into which each warrant or right may be converted. For example, but not limited to, each warrant may be converted into two shares. + References No definition available. + Details
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