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Note 12 - Self-insurance | 6 Months Ended
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Jun. 30, 2020
Notes to Financial Statements |
Self Insurance [Text Block] |
(12) | SELF-INSURANCE
We self-insure our underground mining equipment. Such equipment is allocated among seven mining units dispersed over ten miles. The historical cost of such equipment was approximately $273 million as of June 30, 2020, and December 31, 2019. Restricted cash of $4.5 million as of June 30, 2020, and December 31, 2019 represents cash held and controlled by a third party and is restricted for future workers’ compensation claim payments.

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