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 (unaudited) link:calculationLink link:presentationLink link:definitionLink 106 - Statement - Condensed Consolidated Statements of Cash Flows (unaudited) link:calculationLink link:presentationLink link:definitionLink 107 - Disclosure - Description of Business link:calculationLink link:presentationLink link:definitionLink 108 - Disclosure - Going Concern and Management's Plans link:calculationLink link:presentationLink link:definitionLink 109 - Disclosure - Summary of Significant Accounting Policies link:calculationLink link:presentationLink link:definitionLink 110 - Disclosure - Fair Value of Financial Instruments link:calculationLink link:presentationLink link:definitionLink 111 - Disclosure - Discontinued Operations and Assets Held for Sale link:calculationLink link:presentationLink link:definitionLink 112 - Disclosure - Warrant Liabilities link:calculationLink link:presentationLink link:definitionLink 113 - Disclosure - Commitments and Contingencies link:calculationLink link:presentationLink link:definitionLink 114 - Disclosure - Stockholders' Equity link:calculationLink link:presentationLink link:definitionLink 115 - Disclosure - Net loss per share link:calculationLink link:presentationLink link:definitionLink 116 - Disclosure - Fair Value of Contingent Consideration link:calculationLink link:presentationLink link:definitionLink 117 - Disclosure - Compensation Plan for Board Members link:calculationLink link:presentationLink link:definitionLink 118 - Disclosure - Summary of Significant Accounting Policies (Policies) link:calculationLink link:presentationLink link:definitionLink 119 - Disclosure - Fair Value of Financial Instruments (Tables) link:calculationLink link:presentationLink link:definitionLink 120 - Disclosure - Discontinued Operations and Assets Held for Sale (Tables) link:calculationLink link:presentationLink link:definitionLink 121 - Disclosure - Warrant Liabilities (Tables) link:calculationLink link:presentationLink link:definitionLink 122 - Disclosure - Stockholders' Equity (Tables) link:calculationLink link:presentationLink link:definitionLink 123 - Disclosure - Net loss per share (Tables) link:calculationLink link:presentationLink link:definitionLink 124 - Disclosure - Description of Business - Additional Information (Detail) link:calculationLink link:presentationLink link:definitionLink 125 - Disclosure - Going Concern and Management's Plans - Additional Information (Detail) link:calculationLink link:presentationLink link:definitionLink 126 - Disclosure - Fair Value of Financial Instruments - Summary of Financial Instruments Measured at Fair Value on Recurring Basis (Detail) link:calculationLink link:presentationLink link:definitionLink 127 - Disclosure - Fair Value of Financial Instruments - Summary of Changes in Fair Value of Level 1 and Level 3 Financial Instruments (Detail) link:calculationLink link:presentationLink link:definitionLink 128 - Disclosure - Discontinued Operations and Assets Held for Sale - Balance Sheet Components of Discontinued Operations (Detail) link:calculationLink link:presentationLink link:definitionLink 129 - Disclosure - Discontinued Operations and Assets Held for Sale - Components of Income of Discontinued Operations (Detail) link:calculationLink link:presentationLink link:definitionLink 130 - Disclosure - Discontinued Operations and Assets Held for Sale - Additional Information (Detail) link:calculationLink link:presentationLink link:definitionLink 131 - Disclosure - Warrant Liabilities - Additional Information (Detail) link:calculationLink link:presentationLink link:definitionLink 132 - Disclosure - Warrant Liabilities - Fair Value of Convertible Preferred Stock Warrant Liability (Detail) link:calculationLink link:presentationLink link:definitionLink 133 - Disclosure - Commitments and Contingencies - Additional Information (Detail) link:calculationLink link:presentationLink link:definitionLink 134 - Disclosure - Stockholders' Equity - Additional Information (Detail) link:calculationLink link:presentationLink link:definitionLink 135 - Disclosure - Stockholders' Equity - Summary of Stock Based Compensation Expense (Detail) link:calculationLink link:presentationLink link:definitionLink 136 - Disclosure - Stockholders' Equity - Schedule of Fair Value of Award Granted Using Black-Scholes Option Pricing Model (Detail) link:calculationLink link:presentationLink link:definitionLink 137 - Disclosure - Stockholders' Equity - Summary of Stock Option Transactions (Detail) link:calculationLink link:presentationLink link:definitionLink 138 - Disclosure - Net loss per share - Schedule of Potentially Dilutive Securities Outstanding Excluded from Computations of Diluted Weighted-Average Shares Outstanding (Detail) link:calculationLink link:presentationLink link:definitionLink 139 - Disclosure - Fair Value of Contingent Consideration - Additional Information (Detail) link:calculationLink link:presentationLink link:definitionLink 140 - Disclosure - Compensation Plan for Board Members - Additional Information (Detail) link:calculationLink link:presentationLink link:definitionLink