XML 88 R58.htm IDEA: XBRL DOCUMENT
v2.4.1.9

STOCKHOLDERS' EQUITY (Details 8) (USD $) | 12 Months Ended
--- | ---
Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2012
Stock-Based Compensation to Service Providers |  |  |
Stock-based compensation for services by non-employees | $ 253,000us-gaap_IssuanceOfStockAndWarrantsForServicesOrClaims | $ 252,000us-gaap_IssuanceOfStockAndWarrantsForServicesOrClaims | $ 183,000us-gaap_IssuanceOfStockAndWarrantsForServicesOrClaims
Consultants | Stock options |  |  |
Stock-Based Compensation to Service Providers |  |  |
Shares granted (in shares) | 75,000us-gaap_ShareBasedGoodsAndNonemployeeServicesTransactionQuantityOfSecuritiesIssued / us-gaap_AwardTypeAxis = us-gaap_EmployeeStockOptionMember / us-gaap_ShareBasedGoodsAndNonemployeeServicesTransactionBySupplierAxis = gern_ConsultantsMember | 80,000us-gaap_ShareBasedGoodsAndNonemployeeServicesTransactionQuantityOfSecuritiesIssued / us-gaap_AwardTypeAxis = us-gaap_EmployeeStockOptionMember / us-gaap_ShareBasedGoodsAndNonemployeeServicesTransactionBySupplierAxis = gern_ConsultantsMember | 50,000us-gaap_ShareBasedGoodsAndNonemployeeServicesTransactionQuantityOfSecuritiesIssued / us-gaap_AwardTypeAxis = us-gaap_EmployeeStockOptionMember / us-gaap_ShareBasedGoodsAndNonemployeeServicesTransactionBySupplierAxis = gern_ConsultantsMember
Stock-based compensation for services by non-employees | 94,000us-gaap_IssuanceOfStockAndWarrantsForServicesOrClaims / us-gaap_AwardTypeAxis = us-gaap_EmployeeStockOptionMember / us-gaap_ShareBasedGoodsAndNonemployeeServicesTransactionBySupplierAxis = gern_ConsultantsMember | 92,000us-gaap_IssuanceOfStockAndWarrantsForServicesOrClaims / us-gaap_AwardTypeAxis = us-gaap_EmployeeStockOptionMember / us-gaap_ShareBasedGoodsAndNonemployeeServicesTransactionBySupplierAxis = gern_ConsultantsMember | 135,000us-gaap_IssuanceOfStockAndWarrantsForServicesOrClaims / us-gaap_AwardTypeAxis = us-gaap_EmployeeStockOptionMember / us-gaap_ShareBasedGoodsAndNonemployeeServicesTransactionBySupplierAxis = gern_ConsultantsMember
Consultants and Vendors | Common Stock |  |  |
Stock-Based Compensation to Service Providers |  |  |
Shares granted (in shares) | 71,239us-gaap_ShareBasedGoodsAndNonemployeeServicesTransactionQuantityOfSecuritiesIssued / us-gaap_AwardTypeAxis = us-gaap_CommonStockMember / us-gaap_ShareBasedGoodsAndNonemployeeServicesTransactionBySupplierAxis = gern_ConsultantsAndVendorsMember | 66,853us-gaap_ShareBasedGoodsAndNonemployeeServicesTransactionQuantityOfSecuritiesIssued / us-gaap_AwardTypeAxis = us-gaap_CommonStockMember / us-gaap_ShareBasedGoodsAndNonemployeeServicesTransactionBySupplierAxis = gern_ConsultantsAndVendorsMember | 170,298us-gaap_ShareBasedGoodsAndNonemployeeServicesTransactionQuantityOfSecuritiesIssued / us-gaap_AwardTypeAxis = us-gaap_CommonStockMember / us-gaap_ShareBasedGoodsAndNonemployeeServicesTransactionBySupplierAxis = gern_ConsultantsAndVendorsMember
Stock-based compensation for services by non-employees | 158,000us-gaap_IssuanceOfStockAndWarrantsForServicesOrClaims / us-gaap_AwardTypeAxis = us-gaap_CommonStockMember / us-gaap_ShareBasedGoodsAndNonemployeeServicesTransactionBySupplierAxis = gern_ConsultantsAndVendorsMember | 202,000us-gaap_IssuanceOfStockAndWarrantsForServicesOrClaims / us-gaap_AwardTypeAxis = us-gaap_CommonStockMember / us-gaap_ShareBasedGoodsAndNonemployeeServicesTransactionBySupplierAxis = gern_ConsultantsAndVendorsMember | 1,010,000us-gaap_IssuanceOfStockAndWarrantsForServicesOrClaims / us-gaap_AwardTypeAxis = us-gaap_CommonStockMember / us-gaap_ShareBasedGoodsAndNonemployeeServicesTransactionBySupplierAxis = gern_ConsultantsAndVendorsMember
Prepaid asset relating to operating expense | $ 7,000gern_ShareBasedGoodsAndNonemployeeServicesCapitalizedCost / us-gaap_AwardTypeAxis = us-gaap_CommonStockMember / us-gaap_ShareBasedGoodsAndNonemployeeServicesTransactionBySupplierAxis = gern_ConsultantsAndVendorsMember |  |

X
- Definition The total remaining amount of capitalized costs resulting from the transaction in which equity securities were issued to pay for goods or nonemployee services. + References No definition available. + Details
Name: | gern_ShareBasedGoodsAndNonemployeeServicesCapitalizedCost
Namespace Prefix: | gern_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Fair value of share-based compensation granted to nonemployees as payment for services rendered or acknowledged claims. + 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 (b) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3602-108585 + Details
Name: | us-gaap_IssuanceOfStockAndWarrantsForServicesOrClaims
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Details
Name: | us-gaap_ShareBasedGoodsAndNonemployeeServicesTransactionLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The number of shares or units of entity securities issued in the transaction in which equity securities were issued to pay for goods or nonemployee services. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 50 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6406099&loc=d3e25284-112666 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(iv)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
Name: | us-gaap_ShareBasedGoodsAndNonemployeeServicesTransactionQuantityOfSecuritiesIssued
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_ShareBasedGoodsAndNonemployeeServicesTransactionBySupplierAxis=gern_ConsultantsAndVendorsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ShareBasedGoodsAndNonemployeeServicesTransactionBySupplierAxis=gern_ConsultantsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |