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RELATED PARTY TRANSACTIONS (Details) - Board of Directors Chairman - USD ($) | 12 Months Ended
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Dec. 31, 2017 | Dec. 31, 2016 | Dec. 31, 2015
RPC |  |  |
Related Party Transaction [Line Items] |  |  |
Notice period for termination of service agreement | 6 months |  |
Administrative services and rent income | $ 100,000 | $ 100,000 | $ 100,000
LOR |  |  |
Related Party Transaction [Line Items] |  |  |
Administrative services and rent income | $ 1,000,000 | 1,000,000 | $ 1,000,000
P.I.A. LLC |  |  |
Related Party Transaction [Line Items] |  |  |
Lease termination period | 30 days |  |
Monthly rent payment | $ 100 |  |
Rent and operating costs | $ 800,000 | $ 500,000 |
Percent of use of aircraft by the company | 10000.00% |  |

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