Quarterly report pursuant to Section 13 or 15(d)

Series 3 Preferred Stock (Details)

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Series 3 Preferred Stock (Details) - USD ($)
$ / shares in Units, $ in Thousands
Mar. 31, 2018
Feb. 15, 2018
Dec. 31, 2017
Series 3 Preferred Stock (Textual)      
Preferred stock, shares authorized 5,000,000   5,000,000
Aggregate stated value of Series 3 Preferred stock  
Series 3 Preferred Stock [Member]      
Series 3 Preferred Stock (Textual)      
Preferred stock, shares authorized 10,185 10,184.9752 10,185
Aggregate stated value of Series 3 Preferred stock   $ 1,000  
Series 3 preferred stock conversion value   $ 2.35