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v3.2.0.727

Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands | 6 Months Ended
--- | ---
Jun. 30, 2015 | Jun. 30, 2014
Operating activities |  |
Net loss | $ (49,808) | $ (38,617)
Adjustments to reconcile net loss to net cash used in operating activities: |  |
Depreciation and amortization | 634 | 680
Gain on disposal of property and equipment |  | (24)
Accretion of discounts and amortization of premiums on marketable securities | 314 | 500
Unoccupied facility expense |  | 255
Accretion of debt discount related to debt financing | (100) |
Accretion of end of term payment related to debt financing | 107 |
Cash-settled portion of stock-based compensation expense | 387 |
Stock compensation expense | 3,872 | 2,946
Changes in operating assets and liabilities: |  |
Accounts receivable | 70 | 335
Prepaid expenses and other current assets | 200 | (3,603)
Restricted cash and other assets |  | (579)
Accounts payable | 648 | 112
Accrued liabilities and other long term liabilities | (2,634) | 3,217
Deferred revenues | (1,401) | 996
Net cash used in operating activities | (47,711) | (33,782)
Investing activities |  |
Purchases of marketable securities | (18,654) | (37,251)
Proceeds from maturities of marketable securities | 34,585 | 65,794
Purchases of property and equipment, net | (1,668) | (919)
Net cash provided by investing activities | 14,263 | 27,624
Financing activities |  |
Proceeds from issuance of common stock, net | 20,213 |
Proceeds from exercise of stock options and restricted stock awards | 109 | 13
Proceeds from exercise of warrants | 228 |
Proceeds from Employee Stock Purchase Plan | 103 | 70
Net cash provided by financing activities | 20,653 | 83
Effect of exchange rate changes on cash and cash equivalents | (230) | (15)
Net decrease in cash and cash equivalents | (13,025) | (6,090)
Cash and cash equivalents at beginning of period | 49,511 | 23,122
Cash and cash equivalents at end of period | 36,486 | 17,032
Non-cash investing and financing activities: |  |
Cash paid during the year for interest | 433 |
Disposal of fully depreciated property and equipment | 4 | 664
Net change in unrealized gain on marketable securities | $ (1) | $ 70

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- Definition The cash inflow associated with the sale or maturity (principal being due) of securities not classified as either held-to-maturity securities or trading securities which are classified as available-for-sale securities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 12 -Subparagraph (a),(b) -URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3179-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 45 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=49167202&loc=d3e26853-111562 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Investing Activities -URI http://asc.fasb.org/extlink&oid=6516133 + Details
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- Definition The cash inflow associated with the amount received from holders exercising their stock options. This item inherently excludes any excess tax benefit, which the entity may have realized and reported separately. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (j) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3255-108585 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Financing Activities -URI http://asc.fasb.org/extlink&oid=6513228 + Details
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- Definition The cash inflow associated with the amount received from the stock plan during the period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3255-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Financing Activities -URI http://asc.fasb.org/extlink&oid=6513228 + Details
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- Definition The aggregate amount of noncash, equity-based employee remuneration. This may include the value of stock or unit options, amortization of restricted stock or units, and adjustment for officers' compensation. As noncash, this element is an add back when calculating net cash generated by operating activities using the indirect method. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3602-108585 + Details
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