Commitments and Contingencies (Details Textual) - USD ($)	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Operating Lease, Weighted Average Discount Rate, Percent	9.90%
Operating Lease, Cost	$ 50,000
Operating Lease, Payments	75,000
Right-of-Use Asset Obtained in Exchange for Operating Lease Liability	0
Non Cash Operating Lease Assets Acquired	$ 538,000	$ 0
Operating Lease Expiration Year	2022
Accounting Standards Update 2016-02 [Member]
Non Cash Operating Lease Assets Acquired	$ 538,000