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Supplemental financial information - Product and Geographical Information (Details) (USD $)
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12 Months Ended | ||
|---|---|---|---|
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Dec. 31, 2013
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Dec. 31, 2012
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Dec. 31, 2011
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| Segment Reporting Information [Line Items] | |||
| Revenues | $ 11,884,000 | $ 6,582,000 | $ 2,597,000 |
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iCell Cardiomyocytes [Member]
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| Segment Reporting Information [Line Items] | |||
| Revenues | 4,787,000 | 2,610,000 | 1,350,000 |
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iCell Neurons [Member]
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| Segment Reporting Information [Line Items] | |||
| Revenues | 2,428,000 | 2,256,000 | 45,000 |
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MyCell [Member]
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| Segment Reporting Information [Line Items] | |||
| Revenues | 222,000 | 0 | 0 |
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Other [Member]
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| Segment Reporting Information [Line Items] | |||
| Revenues | 561,000 | 312,000 | 65,000 |
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Total [Domain]
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| Segment Reporting Information [Line Items] | |||
| Revenues | $ 7,998,000 | $ 5,178,000 | $ 1,460,000 |
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Geographic Concentration Risk [Member] | Sales [Member]
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| Segment Reporting Information [Line Items] | |||
| Concentration risk, percentage | 100.00% | 100.00% | 100.00% |
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Geographic Concentration Risk [Member] | Sales [Member] | UNITED STATES
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| Segment Reporting Information [Line Items] | |||
| Concentration risk, percentage | 56.00% | 66.00% | 74.00% |
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Geographic Concentration Risk [Member] | Sales [Member] | Europe [Member]
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| Segment Reporting Information [Line Items] | |||
| Concentration risk, percentage | 38.00% | 24.00% | 17.00% |
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Geographic Concentration Risk [Member] | Sales [Member] | JAPAN
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| Segment Reporting Information [Line Items] | |||
| Concentration risk, percentage | 5.00% | 5.00% | 8.00% |
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Geographic Concentration Risk [Member] | Sales [Member] | Countries Other than US, Japan, and Europe [Member]
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| Segment Reporting Information [Line Items] | |||
| Concentration risk, percentage | 1.00% | 5.00% | 1.00% |