Quarterly report pursuant to Section 13 or 15(d)

Net Loss per Share (Details Textual)

v3.10.0.1
Net Loss per Share (Details Textual) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended 12 Months Ended
Sep. 30, 2018
Sep. 30, 2017
Sep. 30, 2018
Sep. 30, 2017
Dec. 31, 2017
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]          
Preferred Stock Dividends, Income Statement Impact $ 61 $ 6,901 $ 181 $ 6,901 $ 6,900
Equity Option [Member]          
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]          
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount 347,765 320,543 915,852 1,638,333