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FY2017
12 months to Dec 31, 2017
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FY2016
12 months to Dec 31, 2016
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FY2015
12 months to Dec 31, 2015
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FY2014
12 months to Dec 31, 2014
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|---|---|---|---|---|
| Cash flows from operating activities | ||||
| Net loss | ||||
| Adjustments to reconcile net loss to net cash used in operating activities: | ||||
| Share-based compensation expense | ||||
| Common stock issued as payment for services | ||||
| Issuance of Common Stock as Payment for Research and Development Services | ||||
| Total common stock issued as payment for services | ||||
| Amortization of debt issuance costs | ||||
| Amortization of debt discount | ||||
| Interest accrued on long-term debt | ||||
| Impairment loss on property and equipment | ||||
| Gain on early extinguishment of debt | ||||
| Decrease in fair value of warrant liability | ||||
| Gain on disposal of impaired property | ||||
| Other | ||||
| Changes in operating assets and liabilities: | ||||
| Prepaid expenses and other receivables | ||||
| Accounts payable | ||||
| Accrued expenses | ||||
| Manufacturing research and development obligation | ||||
| Deferred liabilities | ||||
| Net cash used in operating activities | ||||
| Cash flows from investing activities | ||||
| Purchase of property and equipment | ||||
| Lease Agreement | ||||
| Total purchase of property and equipment | ||||
| Proceeds from sale of property and equipment | ||||
| Purchases of short-term investments | ||||
| (Payment to) receipt from restricted cash account securing letter of credit | ||||
| Proceeds from maturity of short-term investments | ||||
| Net cash provided by (used in) investing activities | ||||
| Cash flows from financing activities | ||||
| Proceeds from sale of common stock and warrants | ||||
| Stock issuance costs | ||||
| Proceeds from issuance of notes payable with detachable common stock warrants | ||||
| Proceeds from issuance of convertible note payable to related party | ||||
| Payment on lease obligations | ||||
| Lease Agreement | ||||
| Power Generation Agreements | ||||
| Total payment on lease obligations | ||||
| Payments on notes payable | ||||
| Proceeds from exercise of common stock warrants | ||||
| Proceeds from exercise of employee stock purchase plan rights | ||||
| Proceeds from exercise of common stock options | ||||
| Net cash provided by (used in) financing activities | ||||
| Effect of exchange rates changes on cash | ||||
| Net (decrease) increase in cash and cash equivalents | ||||
| Cash and cash equivalents | ||||
| Beginning of period | ||||
| End of period | ||||
| Supplemental disclosure of cash flow information | ||||
| Cash paid for interest | ||||
| Supplemental disclosure of noncash investing and financing activities | ||||
| Issuance of common stock for research and development and other services | ||||
| Issuance of warrants in exchange for early extinguishment of debt | ||||
| Issuance of convertible notes in exchange for early extinguishment of debt | ||||
| Issuance of common stock in exchange for early extinguishment of debt | ||||
| Interest capitalized on construction-in-progress | ||||
| Purchases of property and equipment included in accounts payable and accrued expenses | ||||
| Lease obligations incurred | ||||
| Lease Agreement | ||||
| Power Generation Agreements | ||||
| Total lease obligations incurred | ||||
| Stock issuance costs included in accounts payable and accrued expenses | ||||
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