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Related Party Transactions (Details) - USD ($)	1 Months Ended					3 Months Ended		12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Mar. 31, 2016	Jan. 31, 2016	May 31, 2015	Mar. 31, 2018	Mar. 31, 2017	Dec. 31, 2013	Dec. 31, 2010
Related-Party Transactions (Textual) [Abstract]
Long-term other assets	$ 2,639,354					$ 2,448,628
Contra-research and development expense						$ 2,200,000
GeneOne Life Sciences
Related-Party Transactions (Textual) [Abstract]
Investment owned (shares)						1,644,155
Payment received for license granted									$ 3,000,000
Term								20 years
Milestone-based ownership target				35.00%	35.00%
Proceeds from sale of intangible assets	1,000,000
Revenue from related parties						$ 118,000	$ 167,000
Operating expenses related to affiliated entity						1,700,000	428,000
Accounts payable and accrued liability	107,000					710,000
Long-term other assets	331,000					347,000
Director
Related-Party Transactions (Textual) [Abstract]
Term			5 years
Revenue from related parties							614,000
Operating expenses related to affiliated entity						402,000	543,000
Accounts receivable	117,000					1,800,000
Expenses to reimburse			$ 3,100,000
Award		$ 6,100,000
Contra-research and development expense						1,800,000
Accounts payable/accrued liabilities	820,000					589,000
Plumbline Life Sciences
Related-Party Transactions (Textual) [Abstract]
Revenue from related parties						30,000	$ 67,000
Accounts receivable	$ 370,000					$ 400,000
Plumbline Life Sciences | Available-for-sale Securities
Related-Party Transactions (Textual) [Abstract]
Investment owned (shares)						395,758

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