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Loan Receivable from Prism Solar Technologies, Inc. (Details) - USD ($)
$ in Millions
Sep. 28, 2018
Aug. 14, 2018
Sep. 30, 2018
Loan Receivable from Prism Solar Technologies, Inc. (Textual)      
Loan receivables     $ 1.2
Prism Solar Technologies, Inc. [Member]      
Loan Receivable from Prism Solar Technologies, Inc. (Textual)      
Bridge loan $ 0.2 $ 1.0  
Annual interest rate   12.00%  
Bridge loan converted, description The Initial Bridge Loan described above with term of 90 days until maturity (see Note 20 - Subsequent Events). The Bridge Loan is converted into the equity investment as described above, or until it is repaid. The Initial Bridge Loan has a term of 150 days until maturity.