Annual report pursuant to Section 13 and 15(d)

Business Interruption Proceeds and Gain on Casualty Loss (Details)

v3.8.0.1
Business Interruption Proceeds and Gain on Casualty Loss (Details) - USD ($)
12 Months Ended
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2015
Business Interruption Proceeds and Gain on Casualty Loss [Abstract]      
Business interruption proceeds $ 0 $ 0 $ 1,246,024
Casualty insurance gain $ 0 $ 0 $ (923,470)