Represent that percentage of additional consultant fee pursuant to the license agreements .

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Sum of the carrying values as of the balance sheet date of obligations incurred through that date and due after one year (or beyond the operating cycle if longer), including liabilities for compensation costs, fringe benefits other than pension and postretirement obligations, rent, contractual rights and obligations, and statutory obligations.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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Fees paid to advisors who provide certain management support and administrative oversight services including the organization and sale of stock, investment funds, limited partnerships and mutual funds.

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Commitments - Torreya Agreement (Details) - USD ($)			6 Months Ended
Commitments - Torreya Agreement (Details) - USD ($)	Sep. 08, 2017	Apr. 25, 2016	Jun. 30, 2019	Jun. 30, 2018	Dec. 18, 2014
2014 Consulting Agreement
Other Commitments [Line Items]
Additional consultant fee payable, percentage of perpetuity in excess of $3 million					3.75%
2016 Consulting Agreement
Other Commitments [Line Items]
Percentage of gross funding up to $20 million		5.00%
Percentage of gross funding over $20 million		3.50%
Advisory Services
Other Commitments [Line Items]
Milestone payment percentage of total consideration with payment	3.375%
Milestone period	6 years
Milestone payment percentage of total consideration without payment and with additional provision	3.5625%
Sponsor fees			$ 212,000	$ 0
Accrued liabilities			$ 146,000