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- Definition

Proceeds from award received for project.

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Proceeds from upfront payment.

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Revenue Sharing Multiple, Maximum

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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.

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

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Amount of unused borrowing capacity under the long-term financing arrangement that is available to the entity as of the balance sheet date.

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-Name Accounting Standards Codification
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- Definition

Difference between the fair value of payments made and the carrying amount of debt which is extinguished prior to maturity.

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Amount of the cost of borrowed funds accounted for as interest expense for debt.

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California Institute of Regenerative Medicine Award (Details)		1 Months Ended		3 Months Ended			6 Months Ended
	Sep. 18, 2015 USD ($)	Jun. 30, 2017 USD ($)	Aug. 31, 2016 USD ($)	Jun. 30, 2017 USD ($)	Jun. 30, 2016 USD ($)	Dec. 31, 2015 USD ($)	Jun. 30, 2017 USD ($)	Jun. 30, 2016 USD ($)
Collaborative Arrangements and Non-collaborative Arrangement Transactions [Line Items]
Derecognition of CIRM liability				$ 7,719,440	$ 0		$ 7,719,440	$ 0
California Institute of Regenerative Medicine
Collaborative Arrangements and Non-collaborative Arrangement Transactions [Line Items]
Proceeds from award received for project	$ 19,900,000
Deferred financing costs			$ 1,500,000			$ 4,000,000
Future milestone payments receivable							$ 15,900,000
Contingent revenue sharing multiple							9
Accrued interest				430,024	$ 281,996		$ 882,683	$ 546,823
Derecognition of CIRM liability		$ 7,719,440
Unused funds		$ 108,984		$ 108,984			$ 108,984
California Institute of Regenerative Medicine \| LIBOR
Collaborative Arrangements and Non-collaborative Arrangement Transactions [Line Items]
Debt basis spread on variable rate							1.30%
California Institute of Regenerative Medicine \| Base Rate
Collaborative Arrangements and Non-collaborative Arrangement Transactions [Line Items]
Debt basis spread on variable rate							25.00%