SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details) |
12 Months Ended | ||
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Dec. 31, 2015
USD ($)
SAR / $
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Dec. 31, 2014
USD ($)
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Dec. 31, 2013
USD ($)
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| Accounts Receivable and Allowance for Doubtful Accounts [Abstract] | |||
| Increase in allowance for doubtful accounts | $ 0 | $ 0 | $ 0 |
| Accounts receivable written off | $ 0 | $ 0 | 0 |
| Accounts, Notes, Loans and Financing Receivable [Line Items] | |||
| Imputed interest rates on outstanding notes | 4.00% | 4.00% | |
| Retirement plan [Abstract] | |||
| Percentage contribution by employer in relation to employee contribution to fund | 100.00% | ||
| Employer matching contribution | 6.00% | ||
| Vesting period under 401(k) plan | 7 years | ||
| Matching contribution by employer | $ 1,116,000 | $ 641,000 | 554,000 |
| Other Liabilities [Abstract] | |||
| Reduction in depreciation expense due to amortization of capitalize liability | $ 972,000 | 1,649,000 | $ 1,284,000 |
| Foreign Currency [Abstract] | |||
| Exchange rate | SAR / $ | 3.75 | ||
| Income Taxes [Abstract] | |||
| Accrued interest related to uncertain tax positions | $ 0 | $ 0 | |
| X | ||||||||||
- Definition The reduction in depreciation expense due to amortization of capitalize liability. No definition available.
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- Definition Percentage contribution by employer in relation to employee contribution to fund. No definition available.
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- Definition Period which an employee's right to exercise an award under 401(K )Plan is no longer contingent on satisfaction of either a service condition, market condition or a performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. No definition available.
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- References No definition available.
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- References No definition available.
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
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- References No definition available.
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- Definition Amount of increase (decrease) in the allowance for doubtful accounts. No definition available.
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- Definition Amount of direct write-downs of accounts receivable charged against the allowance. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition The amount of payment into the fund established for purposes of making future disbursements to the individual in accordance with the terms and understanding of the deferred compensation arrangement. No definition available.
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- References No definition available.
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- Definition Percentage of employees' gross pay for which the employer contributes a matching contribution to a defined contribution plan. No definition available.
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- References No definition available.
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- Definition Foreign exchange rate used to translate amounts denominated in functional currency to reporting currency. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Yield on the receivable, on which interest has been imputed, as calculated from its issuance value or purchase price. The calculated effective interest rate considers factors such as the issued face value or price paid for the receivable, the time period between payments, and the time until maturity [full receipt] of the receivable. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Amount of interest expense accrued for an underpayment of income taxes. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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