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Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented.

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Amount of investment in debt and equity securities categorized neither as trading securities nor held-to-maturity securities and intended be sold or mature one year or operating cycle, if longer.

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This item represents the gross profit realized on the sale of debt or equity securities categorized neither as held-to-maturity nor trading securities.

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Amount of credit loss recognized for write-down of right to consideration in exchange for good or service transferred to customer when right is conditioned on something other than passage of time.

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Amount of revenue recognized that was previously included in balance of obligation to transfer good or service to customer for which consideration from customer has been received or is due.

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Amount of liability for consideration received or receivable from customer which is not included in transaction price, when consideration is expected to be refunded to customer.

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Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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The aggregate costs incurred (1) in a planned search or critical investigation aimed at discovery of new knowledge with the hope that such knowledge will be useful in developing a new product or service, a new process or technique, or in bringing about a significant improvement to an existing product or process; or (2) to translate research findings or other knowledge into a plan or design for a new product or process or for a significant improvement to an existing product or process whether intended for sale or the entity's use, during the reporting period charged to research and development projects, including the costs of developing computer software up to the point in time of achieving technological feasibility, and costs allocated in accounting for a business combination to in-process projects deemed to have no alternative future use.

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Indicates (true/false) whether practical expedient is elected not to disclose amount of transaction price allocated to remaining performance obligation and explanation of expected timing of revenue recognition for reporting period presented prior to date of initial application under retrospective method.

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Amount of transaction price allocated to performance obligation that has not been recognized as revenue.

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Period in which remaining performance obligation is expected to be recognized as revenue, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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Basis of Presentation, Summary of Significant Accounting Policies and Recent Accounting Pronouncements - Revenue Recognition, PPE, Licensing and Research (Details)	1 Months Ended	3 Months Ended		6 Months Ended
	Oct. 31, 2014 USD ($)	Jun. 30, 2018 USD ($) shares	Jun. 30, 2017 USD ($) shares	Jun. 30, 2018 USD ($) agreement shares	Jun. 30, 2017 USD ($) shares	Dec. 31, 2017 USD ($)
Revenue Recognition
Number of distribution and license agreements \| agreement				2
Customers average payment term				30 days
Distributors average payment term				45 days
Impairment losses				$ 0
Contract assets		$ 0		$ 0
Performance revenue period				1 year
Revenue perrformance obligation		15,578,000		$ 15,578,000
Remaining performance obligation practical expedient				true
Research and Product Development
Product development and research costs		1,558,946	$ 1,675,494	$ 3,225,302	$ 2,890,345
Investments Available for Sale
Fair value of investments		20,936,973		20,936,973		$ 24,648,459
Realized gains		2,213		128,625
Research and Development
Research and Development Expense		1,558,946	1,675,494	3,225,302	2,890,345
Stock-Based Compensation
Compensation expense (in dollars)		$ 1,365,332	$ 2,111,686	$ 1,811,335	$ 4,390,072
Loss Per Share
Securities excluded from diluted loss per share calculation \| shares		6,881,001	7,706,501	6,806,001	7,706,501
Baxter Healthcare Organization
Revenue Recognition
Revenue perrformance obligation		$ 12,237,000		$ 12,237,000
Baxter Healthcare Organization
Revenue Recognition
Upfront payment	$ 20,000,000
Deferred drug license revenue		600,000	$ 500,000	1,100,000	$ 1,100,000
Licensing Fees
Useful life	10 years
Stock options
Stock-Based Compensation
Compensation expense (in dollars)		353,161	1,070,899	539,433	2,203,686
Restricted stock awards
Stock-Based Compensation
Compensation expense (in dollars)		$ 1,012,171	$ 1,040,787	$ 1,271,902	$ 2,186,386
Loss Per Share
Securities excluded from diluted loss per share calculation \| shares		480,000	480,000	480,000	480,000
LTIP \| Stock options \| Directors and Officers and Employees [Member]
Stock-Based Compensation
Compensation expense (in dollars)		$ 353,161	$ 1,070,899	$ 539,433	$ 2,203,686
LTIP \| Restricted stock awards \| Directors, Officers, Employees and Non-employee Consultants [Member]
Stock-Based Compensation
Compensation expense (in dollars)		1,012,171	$ 1,040,787	1,271,902	$ 2,186,386
Concentrate Products [Member]
Revenue Recognition
Reserve for returns		$ 0		$ 0		$ 0