XML 36 R75.htm IDEA: XBRL DOCUMENT
v2.4.0.6

Commitments and Contingencies (Details Textual) | 1 Months Ended | 12 Months Ended | 1 Months Ended | 12 Months Ended | 1 Months Ended |  | 12 Months Ended | 1 Months Ended | 12 Months Ended
--- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Jul. 31, 2006 Claim | Dec. 31, 2012 USD ($) | Dec. 31, 2011 USD ($) | Dec. 31, 2010 USD ($) | Sep. 30, 2010 Caliper Life Sciences [Member] USD ($) sqft | Dec. 31, 2012 Caliper Life Sciences [Member] | Dec. 31, 2011 BMR-Gateway Boulevard LLC [Member] USD ($) | Dec. 31, 2010 BMR-Gateway Boulevard LLC [Member] USD ($) sqft | Dec. 31, 2012 BMR-Gateway Boulevard LLC [Member] USD ($) sqft | Dec. 31, 2012 Scientific and Administrative Facility [Member] USD ($) | Jan. 31, 2011 Stem Cell Sciences UK [Member] GBP (£) sqft | Dec. 31, 2012 Stem Cell Sciences UK [Member] USD ($)
Commitments and Contingencies (Textual) [Abstract] |  |  |  |  |  |  |  |  |  |  |  |
Term of lease |  |  |  |  | 2 years |  | 11 years 6 months |  |  | 15 years |  |
Rent over term of lease |  |  |  |  | $ 1,081,000 |  |  | $ 17,869,000 |  |  |  |
Deferred rent under sublease agreement |  |  | 2,603 |  |  |  | 1,301,000 |  | 1,389,000 | 249,000 |  |
Additional area of facility |  |  |  |  |  |  |  |  | 30,000 |  |  |
Area of leased space |  |  |  |  |  |  |  |  |  |  | 5,000 |
Area of lease reduced |  |  |  |  |  |  |  |  |  |  | 1,900 |
Rental payments |  |  |  |  |  |  |  |  |  |  | 61,000 |
Annual payments |  |  |  |  |  |  |  |  |  |  |  | 50,000
Letter of credit as security deposit withdrawn on expiration of lease for Palo Alto facility |  |  | 389,000 |  |  |  |  |  |  |  |  |
Square feet area of office and lab space under lease |  |  |  |  | 13,200 |  |  | 43,000 |  |  |  |
Useful life |  |  |  |  |  |  |  |  |  |  |  | 14 years
Litigation costs |  |  |  |  |  |  |  |  |  |  |  | 700,000
Royalty payments |  |  |  |  |  |  |  |  |  |  |  | 600,000
Lease term expires |  | Aug. 31, 2011 |  |  |  | Sep. 30, 2013 |  |  |  | Jun. 30, 2013 |  |
Sublease agreement |  |  |  |  |  | 2 years |  |  |  |  |  |
Operating expenses |  | 2,520,219 | 3,768,586 | 2,703,952 |  |  |  |  |  |  |  |
Commitments and Contingencies (Additional Textual) [Abstract] |  |  |  |  |  |  |  |  |  |  |  |
Proceeds from the issuance of industrial revenue bonds |  | 5,000,000 |  |  |  |  |  |  |  |  |  |
Period of maturity |  | 2014-08 |  |  |  |  |  |  |  |  |  |
Interest rate for remaining bond series |  | 9.50% |  |  |  |  |  |  |  |  |  |
Outstanding principal |  | 374,000 |  |  |  |  |  |  |  |  |  |
Operating expenses |  | 2,520,219 | 3,768,586 | 2,703,952 |  |  |  |  |  |  |  |
Reducing lieu of cash payments |  | 50,000 |  |  |  |  |  |  |  |  |  |
Payments creditable against royalties |  | $ 50,000 |  |  |  |  |  |  |  |  |  |
Number of patients violate claims of Neuralstem's activities | 4 |  |  |  |  |  |  |  |  |  |  |

X
- Definition Additional area of facility land subject to lease. + References No definition available. + Details
Name: | stem_AdditionalAreaOfFacilityLandSubjectToLease
Namespace Prefix: | stem_
Data Type: | num:areaItemType
Balance Type: | na
Period Type: | instant

X
- Definition Area of facility land subject to lease. + References No definition available. + Details
Name: | stem_AreaOfFacilityLandSubjectToLease
Namespace Prefix: | stem_
Data Type: | num:areaItemType
Balance Type: | na
Period Type: | instant

X
- Definition Area of leased space. + References No definition available. + Details
Name: | stem_AreaOfLeasedSpace
Namespace Prefix: | stem_
Data Type: | num:areaItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | stem_CommitmentsAndContingenciesAdditionalTextualAbstract
Namespace Prefix: | stem_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | stem_CommitmentsAndContingenciesTextualAbstract
Namespace Prefix: | stem_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Expiry period of lease term. + References No definition available. + Details
Name: | stem_ExpiryPeriodOfLeaseTerm
Namespace Prefix: | stem_
Data Type: | xbrli:dateItemType
Balance Type: | na
Period Type: | duration

X
- Definition Future payment and royalty payment. + References No definition available. + Details
Name: | stem_FuturePaymentAndRoyaltyPayment
Namespace Prefix: | stem_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Lease expiration withdrawal of security deposit amount. + References No definition available. + Details
Name: | stem_LeaseExpirationWithdrawalOfSecurityDepositAmount
Namespace Prefix: | stem_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Long term debt bond interest rate. + References No definition available. + Details
Name: | stem_LongTermDebtBondInterestRate
Namespace Prefix: | stem_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Maturity period of long term debt. + References No definition available. + Details
Name: | stem_MaturityPeriodOfLongTermDebt
Namespace Prefix: | stem_
Data Type: | xbrli:gYearMonthItemType
Balance Type: | na
Period Type: | duration

X
- Definition Number of patients violate claims. + References No definition available. + Details
Name: | stem_NumberOfPatientsViolateClaims
Namespace Prefix: | stem_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Outstanding principal amount of long term debt. + References No definition available. + Details
Name: | stem_OutstandingPrincipalAmountOfLongTermDebt
Namespace Prefix: | stem_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Payments creditable against royalties. + References No definition available. + Details
Name: | stem_PaymentsCreditableAgainstRoyalties
Namespace Prefix: | stem_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Reduced area of lease. + References No definition available. + Details
Name: | stem_ReducedAreaOfLease
Namespace Prefix: | stem_
Data Type: | num:areaItemType
Balance Type: | na
Period Type: | duration

X
- Definition Reducing lieu of cash payments. + References No definition available. + Details
Name: | stem_ReducingLieuOfCashPayments
Namespace Prefix: | stem_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Sublease agreement. + References No definition available. + Details
Name: | stem_SubleaseAgreement
Namespace Prefix: | stem_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Term of operating lease. + References No definition available. + Details
Name: | stem_TermOfOperatingLease
Namespace Prefix: | stem_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition For a classified balance sheet, the cumulative difference as of the balance sheet date between the payments required by a lease agreement and the rental income or expense recognized on a straight-line basis, or other systematic and rational basis more representative of the time pattern in which use or benefit is granted or derived from the leased property, expected to be recognized in income or expense, by the lessor or lessee, respectively, within one year of the balance sheet date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name FASB Technical Bulletin (FTB) -Number 85-3 -Paragraph 2 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. 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 210.5-02.20) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 20 -Section 25 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=7501430&loc=d3e39927-112707 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 13 -Paragraph 19 -Subparagraph b -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
Name: | us-gaap_DeferredRentCreditCurrent
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
Name: | us-gaap_FiniteLivedIntangibleAssetUsefulLife
Namespace Prefix: | us-gaap_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Rental expense incurred for leased assets including furniture and equipment which has not been recognized in costs and expenses applicable to sales and revenues; for example, cost of goods sold or other operating costs and expenses. + References No definition available. + Details
Name: | us-gaap_LeaseAndRentalExpense
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition This element represents the expenses incurred by the entity which are directly related and attributable to receiving an award in settlement of litigation. + References No definition available. + Details
Name: | us-gaap_LitigationSettlementExpense
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The payments made in the period which reduced loss contingency liabilities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6952336&loc=d3e14326-108349 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 5 -Paragraph 9, 10, 11, 12 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
Name: | us-gaap_LossContingencyAccrualCarryingValuePayments
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Rental expense for the reporting period incurred under operating leases, including minimum and any contingent rent expense, net of related sublease income. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6453985&loc=d3e41499-112717 + Details
Name: | us-gaap_OperatingLeasesRentExpenseNet
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Cash payments to lessor's for use of assets under operating leases. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 25 -Subparagraph (g) -URI http://asc.fasb.org/extlink&oid=6943989&loc=d3e3536-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 27 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
Name: | us-gaap_PaymentsForRent
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The cash inflow from a debt initially having maturity due after one year or beyond the operating cycle, if longer. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 19 -Subparagraph b -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. 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 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 18 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6943989&loc=d3e3255-108585 + Details
Name: | us-gaap_ProceedsFromIssuanceOfLongTermDebt
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration