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Investments in Affiliated Entities (Details) - USD ($)	Dec. 31, 2017	Dec. 31, 2016	Jul. 01, 2015
Related Party Transaction [Line Items]
Carryover basis			$ 0
GeneOne Life Sciences
Related Party Transaction [Line Items]
Percentage of ownership	7.80%	10.20%
GeneOne Life Sciences | Common stock
Related Party Transaction [Line Items]
Number of shares owned (shares)	1,644,155	1,644,155
Plumbline Life Sciences
Related Party Transaction [Line Items]
Percentage of ownership	16.40%	16.40%
Plumbline Life Sciences | Common stock
Related Party Transaction [Line Items]
Number of shares owned (shares)	395,758	395,758

X

- Definition

This item represents the cost of equity securities, which are categorized neither as held-to-maturity nor trading, net of adjustments for other-than-temporary impairments recognized in earnings (less any cumulative-effect adjustments recognized, as defined), and fair value hedge accounting adjustments, if any.

+ 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://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 323
-SubTopic 10
-Section 50
-Paragraph 3
-Subparagraph (a)(1)
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Balance held at close of period in number of shares.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 946
-SubTopic 320
-Section S99
-Paragraph 4
-Subparagraph (SX 210.12-12C.Column B)
-URI http://asc.fasb.org/extlink&oid=50485924&loc=d3e611225-123010

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-Name Accounting Standards Codification
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-URI http://asc.fasb.org/extlink&oid=50485924&loc=d3e611322-123010

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 946
-SubTopic 320
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-Name Accounting Standards Codification
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-Section 50
-Paragraph 6
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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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