XML 62 R38.htm IDEA: XBRL DOCUMENT
v2.4.1.9

Loan Payable - Additional Information (Detail) (USD $) | 1 Months Ended | 3 Months Ended | 14 Months Ended
--- | --- | --- | ---
Feb. 28, 2015 | Apr. 30, 2013 | Mar. 31, 2015 | Aug. 31, 2014
Debt Instrument [Line Items] |  |  |  |
Cash discount |  |  | $ 100,000 us-gaap_DebtInstrumentUnamortizedDiscount |
Loan term |  |  | 3 years |
Annual interest rate on loan |  |  | 6.00%us-gaap_DebtInstrumentInterestRateEffectivePercentage |
Period of loan subject to interest payments only |  |  | 6 months |
Period of loan subject to principal and interest payments |  |  | 30 months |
Final fee payment at the end of loan term |  |  | 1,000,000 stem_LoanFees |
Proceeds received under loan agreement |  |  | 9,900,000 us-gaap_PaymentsForProceedsFromLoansReceivable |
Initial carrying amount assigned to loan, net of discount |  |  | 9,512,000 stem_CarryingValueOfPurchasedLoans |
Fair value allocated to warrant |  |  | 388,000 stem_FairValueAllocatedToWarrant |
Note issuance costs |  |  | 117,000 us-gaap_DebtIssuanceCosts |
Deferred financing costs, discount and accretion percentage |  |  | 9.00%stem_DebtInstrumentAmortizedDiscountPercentage |
CIRM [Member] |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Approval of fund by California Institute for Regenerative Medicine (CIRM) |  | 19,300,000 stem_ApprovalOfFundToCollaborators / us-gaap_TypeOfArrangementAxis = stem_CaliforniaInstituteForRegenerativeMedicineMember |  |
Aggregate proceeds from disbursement of the loan |  |  |  | 9,600,000 us-gaap_ProceedsFromIssuanceOfDebt / us-gaap_TypeOfArrangementAxis = stem_CaliforniaInstituteForRegenerativeMedicineMember
Forgiveness of loan principal |  |  | 8,917,000 us-gaap_DebtInstrumentDecreaseForgiveness / us-gaap_TypeOfArrangementAxis = stem_CaliforniaInstituteForRegenerativeMedicineMember |
Accrued interest forgiven |  |  | 243,000 us-gaap_DebtInstrumentIncreaseAccruedInterest / us-gaap_TypeOfArrangementAxis = stem_CaliforniaInstituteForRegenerativeMedicineMember |
Repayment of aggregate loan proceeds received | 679,000 us-gaap_RepaymentsOfDebt / us-gaap_TypeOfArrangementAxis = stem_CaliforniaInstituteForRegenerativeMedicineMember |  |  |
Silicon Valley Bank Loan Agreement Warrant [Member] |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Term of warrant expiration |  |  | 10 years |
Exercise price of warrant |  |  | $ 1.7034 us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1 / us-gaap_ClassOfWarrantOrRightAxis = stem_SiliconValleyBankLoanAgreementWarrantMember |
Warrant expiration period |  |  | April 2023 |
Silicon Valley Bank Loan Agreement Warrant [Member] | Common Stock [Member] |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Number of shares of common stock acquired using warrant |  |  | 293,531 us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights / us-gaap_ClassOfWarrantOrRightAxis = stem_SiliconValleyBankLoanAgreementWarrantMember / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember |
Silicon Valley Bank [Member] |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Proceeds from loan |  | 9,900,000 us-gaap_ProceedsFromLoans / us-gaap_RelatedPartyTransactionAxis = stem_SiliconValleyBankMember |  |
Cash discount |  | $ 100,000 us-gaap_DebtInstrumentUnamortizedDiscount / us-gaap_RelatedPartyTransactionAxis = stem_SiliconValleyBankMember |  |

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- Definition Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6451184&loc=d3e28551-108399 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 22 -Article 5 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 210.5-02.22(a)(1)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
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- Definition The net amount paid or received by the reporting entity associated with purchase (sale or collection) of loans receivable arising from the financing of goods and services. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3095-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 9 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3098-108585 + Details
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