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Net Income/(Loss) Per Common Share - Schedule of Common Stock Equivalents of Convertible Preferred Stock, Stock Options, Common Stock Purchase Warrants and Restricted Stock (Detail)	6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Potential common stock equivalents	3,891,972	383,035
Common Stock Equivalents of Convertible Preferred Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Potential common stock equivalents	1,464,287
Common Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Potential common stock equivalents	340,028	293,714
Restricted Stock Awards [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Potential common stock equivalents	2,890
Warrants Derivative Liabilities [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Potential common stock equivalents	2,084,767	89,321

Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented.

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