Stockholders' Equity (Details Textual) - shares	Dec. 31, 2018	Dec. 31, 2017
Class of Stock [Line Items]
Preferred Stock, Shares Authorized	3,000,000	3,000,000
Non-Qualified and Incentive Stock Plans [Member]
Class of Stock [Line Items]
Common Stock, Capital Shares Reserved for Future Issuance	9,818,392
Series B Preferred Stock [Member]
Class of Stock [Line Items]
Preferred Stock, Shares Authorized	100,000