Share Capital (Details Textual)	Apr. 25, 2017 shares	Mar. 31, 2017 vote 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		53,381,692	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		53,377,937	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