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COMMITMENTS AND CONTINGENCIES - Gain on Settlement (Details) - USD ($)	1 Months Ended		12 Months Ended
	Dec. 31, 2018	Sep. 30, 2012	Dec. 31, 2018
Gain Contingencies [Line Items]
Potential milestone payments receivable		$ 6,000,000
Dispute settlement	$ 3,650,000
Gain related to litigation settlement	$ 1,460,000		$ 1,460,000
Share of settlement percentage	40.00%
ViaGen, Inc
Gain Contingencies [Line Items]
Ownership percentage		40.00%

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- Definition

Potential milestone payments receivable.

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- Definition

Share of dispute settlement received percentage.

+ References

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- Definition

The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 323
-SubTopic 10
-Section 50
-Paragraph 3
-Subparagraph (a)(1)
-URI http://asc.fasb.org/extlink&oid=114001798&loc=d3e33918-111571

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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.

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No definition available.

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- Definition

Amount of gain (loss) recognized in settlement of litigation and insurance claims. Excludes claims within an insurance entity's normal claims settlement process.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 450
-SubTopic 20
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=82911808&loc=d3e14326-108349

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- Definition

Amount awarded from other party in judgment or settlement of litigation.

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