California Institute of Regenerative Medicine Award (Details) - California Institute of Regenerative Medicine - USD ($)		3 Months Ended
Sep. 18, 2015	Mar. 31, 2016
Collaborative Arrangements And Noncollaborative Arrangement Transactions [Line Items]
Proceeds from award received for project	$ 19,900,000
Proceeds from project initiation payment		$ 4,000,000
Future milestone payments receivable		$ 15,900,000
Debt, description of variable rate basis		three-month LIBOR rate
Debt basis spread on variable rate		0.62%
Debt interest rate during period		25.00%
Interest Payable		$ 264,827

Future milestone payments receivable.

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- Definition

Proceeds from award received for project.

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Proceeds from upfront payment.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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Percentage points added to the reference rate to compute the variable rate on the debt instrument.

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The reference rate for the variable rate of the debt instrument, such as LIBOR or the US Treasury rate and the maturity of the reference rate used, such as three months or six months LIBOR.

+ References

No definition available.

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- Definition

The average effective interest rate during the reporting period.

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Amount of interest payable on debt, including, but not limited to, trade payables.

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