Warrants (Details 2)	12 Months Ended
	Dec. 31, 2019 $ / shares shares
Warrants (Equity) [Member]
Class of Warrant or Right [Line Items]
Number of Shares, Warrants, Beginning Balance | shares	4,815,047
Number of Shares, Warrants issued | shares
Number of Shares, Warrants expired | shares	(82,019)
Number of Shares, Warrants, Ending Balance | shares	4,733,028
Weighted Average Exercise Price, Beginning Balance | $ / shares	$ 4.90
Weighted Average Exercise Price, Warrants issued | $ / shares
Weighted Average Exercise Price, Warrants expired | $ / shares	8.25
Weighted Average Exercise Price, Ending Balance | $ / shares	$ 4.83
Weighted Average Remaining Contractual Life, Beginning Balance	4 years 4 months 2 days
Weighted Average Remaining Contractual Life, Ending Balance	3 years 4 months 28 days
Warrants (Liability) [Member]
Class of Warrant or Right [Line Items]
Number of Shares, Warrants, Beginning Balance | shares	216,255
Number of Shares, Warrants issued | shares
Number of Shares, Warrants expired | shares	(216,255)
Number of Shares, Warrants, Ending Balance | shares
Weighted Average Exercise Price, Beginning Balance | $ / shares	$ 7.34
Weighted Average Exercise Price, Warrants issued | $ / shares
Weighted Average Exercise Price, Warrants expired | $ / shares	7.34
Weighted Average Exercise Price, Ending Balance | $ / shares
Weighted Average Remaining Contractual Life, Beginning Balance	7 months 21 days