Recently Adopted Accounting Pronouncement (Details Narrative) - ASU 2014-09 [Member]	Dec. 31, 2017 USD ($)
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Reimbursement agreement	$ 300,000
Difference Between Revenue Guidance In Effect Before and After Topic 606 [Member]
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Contract liability	3,200,000
Retained Earnings [Member]
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Cumulative effect adjustment	$ 6,700,000

Amount of obligation to transfer good or service to customer for which consideration has been received or is receivable.

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Amount after tax of increase (decrease) to equity or (increase) decrease to net assets, resulting from the cumulative effect adjustment of a new accounting principle applied in the period of adoption.

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