Organization and Business Invesment in Joint Venture Company (Details) |
12 Months Ended | 18 Months Ended |
---|---|---|
Jun. 30, 2016
USD ($)
Rate
|
Jun. 30, 2016
USD ($)
Rate
|
|
Property Subject to or Available for Operating Lease [Line Items] | ||
Investment by Joint Venture Partner | $ | $ 5,650,000 | $ 10,700,000 |
Royal Alaska Joint Venture Percentage | Rate | 11.00% | 11.00% |