Future milestone payments receivable.

No definition available.

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- Definition

Proceeds from award received for project.

+ References

No definition available.

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- Definition

Proceeds from upfront payment.

+ References

No definition available.

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- Definition

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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- Definition

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

+ References

No definition available.

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- Definition

The average effective interest rate during the reporting period.

+ References

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- Definition

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

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California Institute of Regenerative Medicine Award (Details) - California Institute of Regenerative Medicine - USD ($)		1 Months Ended	3 Months Ended	12 Months Ended
	Sep. 18, 2015	Aug. 31, 2016	Dec. 31, 2015	Dec. 31, 2016
Collaborative Arrangements and Non-collaborative Arrangement Transactions [Line Items]
Proceeds from award received for project	$ 19,919,449
Proceeds from project initiation payment		$ 1,500,000	$ 4,000,000
Future milestone payments receivable				$ 15,919,449
Debt interest rate during period				25.00%
Accrued interest				$ 1,445,741
LIBOR
Collaborative Arrangements and Non-collaborative Arrangement Transactions [Line Items]
Debt basis spread on variable rate				0.92%