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 and Comprehensive Loss link:calculationLink link:presentationLink link:definitionLink 106 - Statement - Condensed Consolidated Statements of Cash Flows link:calculationLink link:presentationLink link:definitionLink 107 - Disclosure - BUSINESS AND BASIS OF PRESENTATION link:calculationLink link:presentationLink link:definitionLink 108 - Disclosure - RECENT ACCOUNTING PRONOUNCEMENTS link:calculationLink link:presentationLink link:definitionLink 109 - Disclosure - ACCOUNTS RECEIVABLE link:calculationLink link:presentationLink link:definitionLink 110 - Disclosure - FAIR VALUE MEASUREMENTS link:calculationLink link:presentationLink link:definitionLink 111 - Disclosure - CASH, CASH EQUIVALENTS AND SHORT-TERM INVESTMENTS link:calculationLink link:presentationLink link:definitionLink 112 - Disclosure - PROPERTY AND EQUIPMENT link:calculationLink link:presentationLink link:definitionLink 113 - Disclosure - WARRANTS link:calculationLink link:presentationLink link:definitionLink 114 - Disclosure - ACCRUED EXPENSES link:calculationLink link:presentationLink link:definitionLink 115 - Disclosure - GOVERNMENT CONTRACTS link:calculationLink link:presentationLink link:definitionLink 116 - Disclosure - STOCK-BASED COMPENSATION link:calculationLink link:presentationLink link:definitionLink 117 - Disclosure - NET LOSS PER SHARE link:calculationLink link:presentationLink link:definitionLink 118 - Disclosure - INCOME TAXES link:calculationLink link:presentationLink link:definitionLink 119 - Disclosure - RESTRUCTURING link:calculationLink link:presentationLink link:definitionLink 120 - Disclosure - COMMITMENTS AND CONTINGENCIES link:calculationLink link:presentationLink link:definitionLink 121 - Disclosure - SUBSEQUENT EVENT link:calculationLink link:presentationLink link:definitionLink 122 - Disclosure - BUSINESS AND BASIS OF PRESENTATION (Policies) link:calculationLink link:presentationLink link:definitionLink 123 - Disclosure - FAIR VALUE MEASUREMENTS (Tables) link:calculationLink link:presentationLink link:definitionLink 124 - Disclosure - CASH, CASH EQUIVALENTS AND SHORT-TERM INVESTMENTS (Tables) link:calculationLink link:presentationLink link:definitionLink 125 - Disclosure - PROPERTY AND EQUIPMENT (Tables) link:calculationLink link:presentationLink link:definitionLink 126 - Disclosure - WARRANTS (Tables) link:calculationLink link:presentationLink link:definitionLink 127 - Disclosure - ACCRUED EXPENSES (Tables) link:calculationLink link:presentationLink link:definitionLink 128 - Disclosure - GOVERNMENT CONTRACTS (Tables) link:calculationLink link:presentationLink link:definitionLink 129 - Disclosure - STOCK-BASED COMPENSATION (Tables) link:calculationLink link:presentationLink link:definitionLink 130 - Disclosure - NET LOSS PER SHARE (Tables) link:calculationLink link:presentationLink link:definitionLink 131 - Disclosure - RESTRUCTURING (Tables) link:calculationLink link:presentationLink link:definitionLink 132 - Disclosure - COMMITMENTS AND CONTINGENCIES (Tables) link:calculationLink link:presentationLink link:definitionLink 133 - Disclosure - Business and Basis of Presentation - Additional Information (Detail) link:calculationLink link:presentationLink link:definitionLink 134 - Disclosure - Accounts Receivable - Additional Information (Detail) link:calculationLink link:presentationLink link:definitionLink 135 - Disclosure - Assets and Liabilities Measured and Carried at Fair Value (Detail) link:calculationLink link:presentationLink link:definitionLink 136 - Disclosure - Summary of Company Cash , Cash Equivalents and Short-term Investments (Detail) link:calculationLink link:presentationLink link:definitionLink 137 - Disclosure - Summary of Company's Property and Equipment (Detail) link:calculationLink link:presentationLink link:definitionLink 138 - Disclosure - Property and Equipment - Additional Information (Detail) link:calculationLink link:presentationLink link:definitionLink 139 - Disclosure - Weighted-Average Assumptions (Detail) link:calculationLink link:presentationLink link:definitionLink 140 - Disclosure - Weighted-Average Assumptions (Parenthetical) (Detail) link:calculationLink link:presentationLink link:definitionLink 141 - Disclosure - Reconciliation of Change in Value of Company's Warrants Liabilities (Detail) link:calculationLink link:presentationLink link:definitionLink 142 - Disclosure - Summary of Warrant Activity (Detail) link:calculationLink link:presentationLink link:definitionLink 143 - Disclosure - Summary of Company's Warrants Outstanding (Detail) link:calculationLink link:presentationLink link:definitionLink 144 - Disclosure - Summary of Accrued Expenses (Detail) link:calculationLink link:presentationLink link:definitionLink 145 - Disclosure - Revenue from United States and European Union Governments Contracts and Other Revenue (Detail) link:calculationLink link:presentationLink link:definitionLink 146 - Disclosure - Government Contracts - Additional Information (Detail) link:calculationLink link:presentationLink link:definitionLink 147 - Disclosure - Stock-Based Compensation - Additional Information (Detail) link:calculationLink link:presentationLink link:definitionLink 148 - Disclosure - Summary of Stock Option Activity (Detail) link:calculationLink link:presentationLink link:definitionLink 149 - Disclosure - Assumptions for Measuring Fair Values of Stocks (Detail) link:calculationLink link:presentationLink link:definitionLink 150 - Disclosure - Assumptions for Measuring Fair Values of Stocks (Parenthetical) (Detail) link:calculationLink link:presentationLink link:definitionLink 151 - Disclosure - Summary of Restricted Stock Award Activity (Detail) link:calculationLink link:presentationLink link:definitionLink 152 - Disclosure - Summary of Restricted Stock Unit Activity (Detail) link:calculationLink link:presentationLink link:definitionLink 153 - Disclosure - Summary of Stock Appreciation Rights Activity (Detail) link:calculationLink link:presentationLink link:definitionLink 154 - Disclosure - Summary of Share-based Compensation Expense by Function Included within Condensed Consolidated Statement of Operations and Comprehensive Loss (Detail) link:calculationLink link:presentationLink link:definitionLink 155 - Disclosure - Summary of Share-based Compensation Expense by Grant Type Included within Condensed Consolidated Statement of Operations and Comprehensive Loss (Detail) link:calculationLink link:presentationLink link:definitionLink 156 - Disclosure - Basic and Diluted Net Income (Loss) Per Share (Detail) link:calculationLink link:presentationLink link:definitionLink 157 - Disclosure - Basic and Diluted Net Income (Loss) Per Share (Parenthetical) (Detail) link:calculationLink link:presentationLink link:definitionLink 158 - Disclosure - Income Taxes - Additional Information (Detail) link:calculationLink link:presentationLink link:definitionLink 159 - Disclosure - Restructuring - Additional Information (Detail) link:calculationLink link:presentationLink link:definitionLink 160 - Disclosure - Changes in Liability and Balance Related to Restructuring Plan (Detail) link:calculationLink link:presentationLink link:definitionLink 161 - Disclosure - Commitments and Contingencies - Additional Information (Detail) link:calculationLink link:presentationLink link:definitionLink 162 - Disclosure - Aggregate Non-Cancelable Future Minimum Payments under Leases (Detail) link:calculationLink link:presentationLink link:definitionLink 163 - Disclosure - Non-cancelable Contractual Obligations (Detail) link:calculationLink link:presentationLink link:definitionLink 164 - Disclosure - Subsequent Event - Additional Information (Detail) link:calculationLink link:presentationLink link:definitionLink