Share Capital (Details Textual)	Jun. 30, 2017 vote shares	Apr. 25, 2017 shares	Mar. 31, 2017 shares	Dec. 31, 2016 shares
Preferred Stock [Member] | Series 4 Convertible Preferred Stock [Domain]
Share Capital [Line Items]
Shares, Outstanding	95,000	95,000		0
Common Stock [Member]
Share Capital [Line Items]
Shares, Outstanding	56,260,322			52,802,058
Common Stock [Member] | Common Class A [Member]
Share Capital [Line Items]
Common Stock, Voting Rights, Number of Votes per Share | vote	1
Shares, Outstanding	56,256,567			52,798,303
Common Stock [Member] | Common Class B
Share Capital [Line Items]
Common Stock, Voting Rights, Number of Votes per Share | vote	20
Shares, Outstanding			3,755	3,755