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Accounting Policies - Schedule of Fair Value of Financial Assets Measured On Recurring Basis (Details) - USD ($)
Dec. 31, 2017
Jun. 30, 2017
Revenue in excess of billing - long term $ 6,668,854 $ 5,173,538
Total 6,668,854 5,173,538
Level 1 [Member]    
Revenue in excess of billing - long term
Total
Level 2 [Member]    
Revenue in excess of billing - long term
Total
Level 3 [Member]    
Revenue in excess of billing - long term 6,668,854 5,173,538
Total $ 6,668,854 $ 5,173,538