101 - Document - Document and Entity Information link:calculationLink link:presentationLink link:definitionLink 103 - Statement - Condensed Consolidated Balance Sheets link:calculationLink link:presentationLink link:definitionLink 104 - Statement - Condensed Consolidated Balance Sheets (Parenthetical) link:calculationLink link:presentationLink link:definitionLink 105 - Statement - Condensed Consolidated Statements of Operations link:calculationLink link:presentationLink link:definitionLink 106 - Statement - Condensed Consolidated Statements of Cash Flows link:calculationLink link:presentationLink link:definitionLink 107 - Statement - Condensed Consolidated Statements of Cash Flows (Parenthetical) link:calculationLink link:presentationLink link:definitionLink 108 - Disclosure - Nature of Business link:calculationLink link:presentationLink link:definitionLink 109 - Disclosure - Summary of Significant Accounting Policies link:calculationLink link:presentationLink link:definitionLink 110 - Disclosure - Loss Per Common Share link:calculationLink link:presentationLink link:definitionLink 111 - Disclosure - Property and Equipment link:calculationLink link:presentationLink link:definitionLink 112 - Disclosure - Commitments and Contingencies link:calculationLink link:presentationLink link:definitionLink 113 - Disclosure - Warrants link:calculationLink link:presentationLink link:definitionLink 114 - Disclosure - Stock-Based Compensation link:calculationLink link:presentationLink link:definitionLink 115 - Disclosure - Income Taxes link:calculationLink link:presentationLink link:definitionLink 116 - Disclosure - Summary of Significant Accounting Policies (Policies) link:calculationLink link:presentationLink link:definitionLink 117 - Disclosure - Summary of Significant Accounting Policies (Tables) link:calculationLink link:presentationLink link:definitionLink 118 - Disclosure - Loss Per Common Share (Tables) link:calculationLink link:presentationLink link:definitionLink 119 - Disclosure - Property and Equipment (Tables) link:calculationLink link:presentationLink link:definitionLink 120 - Disclosure - Stock-Based Compensation (Tables) link:calculationLink link:presentationLink link:definitionLink 121 - Disclosure - Nature of Business - Additional Information (Detail) link:calculationLink link:presentationLink link:definitionLink 122 - Disclosure - Summary of Significant Accounting Policies - Summary of Operations in Different Geographic Regions (Detail) link:calculationLink link:presentationLink link:definitionLink 123 - Disclosure - Summary of Significant Accounting Policies - Additional Information (Detail) link:calculationLink link:presentationLink link:definitionLink 124 - Disclosure - Summary of Significant Accounting Policies - Summary of Cash Equivalents Measured at Fair Value on Recurring Basis (Detail) link:calculationLink link:presentationLink link:definitionLink 125 - Disclosure - Summary of Significant Accounting Policies - Summary of Intangible Assets, Net of Accumulated Impairment Charges (Detail) link:calculationLink link:presentationLink link:definitionLink 126 - Disclosure - Loss Per Common Share - Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share (Detail) link:calculationLink link:presentationLink link:definitionLink 127 - Disclosure - Loss Per Common Share - Additional Information (Detail) link:calculationLink link:presentationLink link:definitionLink 128 - Disclosure - Property and Equipment - Schedule of Property and Equipment (Detail) link:calculationLink link:presentationLink link:definitionLink 129 - Disclosure - Property and Equipment - Additional Information (Detail) link:calculationLink link:presentationLink link:definitionLink 130 - Disclosure - Commitments and Contingencies - Additional Information (Detail) link:calculationLink link:presentationLink link:definitionLink 131 - Disclosure - Warrants - Additional Information (Detail) link:calculationLink link:presentationLink link:definitionLink 132 - Disclosure - Stock-Based Compensation - Summary of Stock Option Activity Under the 2012 and 2013 Plans (Detail) link:calculationLink link:presentationLink link:definitionLink 133 - Disclosure - Stock-Based Compensation - Additional Information (Detail) link:calculationLink link:presentationLink link:definitionLink 134 - Disclosure - Stock-Based Compensation - Schedule of Restricted Stock Awards Under the 2012 and 2013 Plans (Detail) link:calculationLink link:presentationLink link:definitionLink 135 - Disclosure - Stock-Based Compensation - Summary of Stock-Based Compensation for all Options Granted and Restricted Stock Awards (Detail) link:calculationLink link:presentationLink link:definitionLink 136 - Disclosure - Stock-Based Compensation - Summary of Stock-Based Compensation by Award (Detail) link:calculationLink link:presentationLink link:definitionLink 137 - Disclosure - Stock-Based Compensation - Summary of Weighted-Average Assumptions Used in the Black-Scholes Option Pricing Model to Determine the Fair Value of the Employee Stock Option Grants (Detail) link:calculationLink link:presentationLink link:definitionLink 138 - Disclosure - Stock-Based Compensation - Summary of Weighted-Average Assumptions Used in the Black-Scholes Option Pricing Model to Determine the Fair Value of the Non-Employee Stock Option Grants (Detail) link:calculationLink link:presentationLink link:definitionLink 139 - Disclosure - Income Taxes - Additional Information (Detail) link:calculationLink link:presentationLink link:definitionLink