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v2.4.1.9

CONDENSED BALANCE SHEETS (USD $) In Thousands, unless otherwise specified | Mar. 31, 2015 | Dec. 31, 2014
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Current assets: |  |
Cash and cash equivalents | $ 10,182 us-gaap_CashAndCashEquivalentsAtCarryingValue | $ 42,796 us-gaap_CashAndCashEquivalentsAtCarryingValue
Restricted cash | 266 us-gaap_RestrictedCashAndCashEquivalentsAtCarryingValue | 266 us-gaap_RestrictedCashAndCashEquivalentsAtCarryingValue
Marketable securities | 135,655 us-gaap_AvailableForSaleSecuritiesCurrent | 108,645 us-gaap_AvailableForSaleSecuritiesCurrent
Interest and other receivables | 1,190 us-gaap_NontradeReceivablesCurrent | 963 us-gaap_NontradeReceivablesCurrent
Prepaid assets | 604 us-gaap_PrepaidExpenseCurrent | 736 us-gaap_PrepaidExpenseCurrent
Total current assets | 147,897 us-gaap_AssetsCurrent | 153,406 us-gaap_AssetsCurrent
Noncurrent marketable securities | 17,739 us-gaap_AvailableForSaleSecuritiesNoncurrent | 18,932 us-gaap_AvailableForSaleSecuritiesNoncurrent
Property and equipment, net | 171 us-gaap_PropertyPlantAndEquipmentNet | 173 us-gaap_PropertyPlantAndEquipmentNet
Total assets | 165,807 us-gaap_Assets | 172,511 us-gaap_Assets
Current liabilities: |  |
Accounts payable | 1,180 us-gaap_AccountsPayableCurrent | 1,033 us-gaap_AccountsPayableCurrent
Accrued compensation and benefits | 2,135 us-gaap_EmployeeRelatedLiabilitiesCurrent | 4,213 us-gaap_EmployeeRelatedLiabilitiesCurrent
Accrued collaboration charges | 626 gern_CollaborativeArrangementAccruedCollaborationChargesCurrent |
Accrued restructuring charges | 316 us-gaap_RestructuringReserveCurrent |
Accrued liabilities | 1,375 us-gaap_AccruedLiabilitiesCurrent | 1,537 us-gaap_AccruedLiabilitiesCurrent
Deferred revenue | 35,000 us-gaap_DeferredRevenueCurrent | 35,000 us-gaap_DeferredRevenueCurrent
Fair value of derivatives |  | 16 us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue
Total current liabilities | 40,632 us-gaap_LiabilitiesCurrent | 41,799 us-gaap_LiabilitiesCurrent
Commitments and contingencies |  |
Stockholders' equity: |  |
Common stock | 158 us-gaap_CommonStockValue | 157 us-gaap_CommonStockValue
Additional paid-in capital | 1,062,782 us-gaap_AdditionalPaidInCapitalCommonStock | 1,059,072 us-gaap_AdditionalPaidInCapitalCommonStock
Accumulated deficit | (937,748)us-gaap_RetainedEarningsAccumulatedDeficit | (928,433)us-gaap_RetainedEarningsAccumulatedDeficit
Accumulated other comprehensive loss | (17)us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax | (84)us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax
Total stockholders' equity | 125,175 us-gaap_StockholdersEquity | 130,712 us-gaap_StockholdersEquity
Total liabilities and stockholders' equity | $ 165,807 us-gaap_LiabilitiesAndStockholdersEquity | $ 172,511 us-gaap_LiabilitiesAndStockholdersEquity

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- Definition Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Cash -URI http://asc.fasb.org/extlink&oid=6506951 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Cash Equivalents -URI http://asc.fasb.org/extlink&oid=6507016 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 1 -Article 5 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.1) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section 45 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=28358313&loc=d3e6676-107765 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3044-108585 + Details
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- Definition The carrying amounts of cash and cash equivalent items which are restricted as to withdrawal or usage. Restrictions may include legally restricted deposits held as compensating balances against short-term borrowing arrangements, contracts entered into with others, or entity statements of intention with regard to particular deposits; however, time deposits and short-term certificates of deposit are not generally included in legally restricted deposits. Excludes compensating balance arrangements that are not agreements which legally restrict the use of cash amounts shown on the balance sheet. For a classified balance sheet represents the current portion only (the noncurrent portion has a separate concept); there is a separate and distinct element for unclassified presentations. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 1 -Article 5 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.1) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition Carrying amount as of the balance sheet date of known and estimated obligations associated with exit from or disposal of business activities or restructurings pursuant to a duly authorized plan, which are expected to be paid in the next twelve months or in the normal operating cycle if longer. Costs of such activities include those for one-time termination benefits, termination of an operating lease or other contract, consolidating or closing facilities, relocating employees, and costs associated with an ongoing benefit arrangement, but excludes costs associated with the retirement of a long-lived asset. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 5 -Section P -Subsection 4 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6394359&loc=d3e17939-110869 + Details
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- Definition The cumulative amount of the reporting entity's undistributed earnings or deficit. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 31 -Article 5 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Article 3 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.31(a)(3)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition Total of all stockholders' equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity which are attributable to the parent. The amount of the economic entity's stockholders' equity attributable to the parent excludes the amount of stockholders' equity which is allocable to that ownership interest in subsidiary equity which is not attributable to the parent (noncontrolling interest, minority interest). This excludes temporary equity and is sometimes called permanent equity. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SAB TOPIC 4.E) -URI http://asc.fasb.org/extlink&oid=27010918&loc=d3e74512-122707 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 4 -Section E Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.29-31) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 29, 30, 31 -Article 5 + Details
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