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Commitments and contingencies (Details) (USD $) |  |  | 0 Months Ended |  |  | 0 Months Ended | 13 Months Ended |  |  | 0 Months Ended
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Jun. 30, 2014 | Dec. 31, 2013 | Nov. 01, 2011 Santa Barbara Operating units item sqft | Jun. 30, 2014 Santa Barbara Operating units | Jun. 30, 2012 Santa Barbara Operating units | Aug. 01, 2011 Los Angeles sqft | May 31, 2013 Los Angeles | Jun. 30, 2014 Los Angeles | Apr. 30, 2012 Los Angeles | Aug. 01, 2011 Los Angeles Minimum | Aug. 01, 2011 Los Angeles Maximum
Office Space Rental |  |  |  |  |  |  |  |  |  |  |
Office area under lease |  |  | 3,000 |  |  | 7,000 |  |  |  |  |
Unpaid rent |  |  |  |  | $ 229,000 |  |  |  | $ 892,000 |  |
Rent liability for facilities no longer occupied | 1,121,495 | 1,121,495 |  | 229,000 |  |  |  | 892,000 |  |  |
Monthly rent |  |  | $ 7,157 |  |  | $ 19,326 | $ 2,300 |  |  |  |
Annual increase in rent (as a percent) |  |  |  |  |  | 3.00% |  |  |  |  |
Period for which fixed monthly rent is not required to be paid |  |  |  |  |  |  |  |  |  | 2 months | 5 years
Number of extension option |  |  | 2 |  |  |  |  |  |  |  |
Renewal term |  |  | 3 years |  |  |  |  |  |  |  |

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- Definition Rental expense paid per month for the reporting period incurred under operating leases, including minimum and any contingent rent expense, net of related sublease income. + References No definition available. + Details
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- Definition Represents the percentage of annual increase in rental expense under operating leases, including minimum and any contingent rent expense, net of related sublease income. + References No definition available. + Details
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- Definition Represents the period for which fixed monthly rent is not required to be paid under operating leases, including minimum and any contingent rent expense, net of related sublease income. + References No definition available. + Details
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- Definition Carrying value as of the balance sheet date of obligations incurred through that date and payable for contractual rent under lease arrangements. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 20 -Article 5 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Current Liabilities -URI http://asc.fasb.org/extlink&oid=6509677 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section 45 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=28358313&loc=d3e6935-107765 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 210.5-02.20) -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 6 -URI http://asc.fasb.org/extlink&oid=28358313&loc=d3e6911-107765 + Details
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- Definition Term of the lessee's leasing arrangement renewal, 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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