Merck GHI Financing (Details Textual) - Merck GHI Financing Agreement [Member] - USD ($)	Jul. 14, 2015	Dec. 31, 2015	Jul. 31, 2015
Common Stock and Note Purchase Agreement [Line Items]
Stock Issued During Period, Shares, New Issues	1,136,364
Shares Issued, Price Per Share	$ 4.40
Proceeds from Issuance of Common Stock	$ 5,000,000
Debt Instrument, Interest Rate, Stated Percentage	8.00%		8.00%
Debt Instrument, Face Amount	$ 1,000,000	$ 1,000,000
Fees Related to Common Stock and Debt Transaction	50,000
Payments of Debt Issuance Costs	8,000
Adjustments to Additional Paid in Capital, Stock Issued, Issuance Costs	$ 42,000

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The amount of fees related to common stock and debt transaction.

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Amount of decrease in additional paid in capital (APIC) resulting from direct costs associated with issuing stock. Includes, but is not limited to, legal and accounting fees and direct costs associated with stock issues under a shelf registration.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
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- Definition

Face (par) amount of debt instrument at time of issuance.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 30
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Contractual interest rate for funds borrowed, under the debt agreement.

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.22(a)(1))
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The cash outflow paid to third parties in connection with debt origination, which will be amortized over the remaining maturity period of the associated long-term debt.

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-Publisher FASB
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- Definition

The cash inflow from the additional capital contribution to the entity.

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-Publisher FASB
-Name Accounting Standards Codification
-Glossary Financing Activities
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Per share or per unit amount of equity securities issued.

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Number of new stock issued during the period.

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