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Organization and Description of Business (Details Textual) - USD ($)
 1 Months Ended 3 Months Ended 12 Months Ended 107 Months Ended
Jan. 25, 2017
Dec. 31, 2016
Sep. 30, 2016
Jun. 30, 2016
Mar. 31, 2016
Dec. 31, 2015
Sep. 30, 2015
Jun. 30, 2015
Mar. 31, 2015
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2016
Organization and Description of Business [Line Items]                        
Net Loss   $ (2,306,000) $ (3,846,000) $ (2,431,000) $ (2,589,000) $ (2,558,000) $ (1,961,000) $ (1,796,000) $ (1,583,000) $ (11,173,000) $ (7,898,000) $ 40,331,000
Subsequent Event [Member] | Right Offering and Public Offering [Member]                        
Organization and Description of Business [Line Items]                        
Gross Proceeds From Public Stock Offering Of CommonStock $ 9,600,000