Basis of Presentation (Details Narrative) - USD ($) $ in Thousands |
Mar. 31, 2019 |
Dec. 31, 2018 |
Mar. 31, 2018 |
|---|---|---|---|
| Organization, Consolidation and Presentation of Financial Statements [Abstract] | |||
| Finite risk sinking fund | $ 16,052 | $ 15,971 | $ 15,726 |
| X | ||||||||||
- Definition As of the balance sheet date, the total amount into the sinking fund, along with interest income earned, in connection for the company's closure policies. No definition available.
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| X | ||||||||||
- References No definition available.
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