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Commitments and Contingencies (Details Narrative) - USD ($) |  | 1 Months Ended | 12 Months Ended |
--- | --- | --- | --- | ---
Jul. 22, 2019 | Jun. 30, 2003 | Dec. 31, 2019 | Dec. 31, 2018 | Jul. 21, 2019
Finite risk sinking fund (restricted cash) |  |  | $ 11,307,000 | $ 15,971,000 |
Interest income, other |  |  | 337,000 | 295,000 |
Letters of credit outstanding, amount |  |  | 2,639,000 |  |
Bond outstanding |  |  | 28,937,000 |  |
American International Group, Inc [Member] |  |  |  |  |
Period of finite risk insurance policy |  | 25 years |  |  |
Maximum allowable coverage of insurance policy | $ 28,177,000 | $ 39,000,000 |  |  | $ 39,000,000
Sinking funds received | $ 5,000,000 |  |  |  |
Sinking funds description | As a result of the closure of the Company's M&EC facility, on July 22, 2019, AIG released $5,000,000 of the finite risk sinking funds held as collateral under the 2003 Closure Policy to the Company. The finite risk sinking funds received by the Company are to be used for general working capital needs. In conjunction with the release of the finite risk sinking funds by AIG, total coverage under the 2003 Closure Policy was amended from $30,549,000 to $19,314,000. Additionally, the maximum coverage allowable under the 2003 Closure Policy was amended from $39,000,000 to approximately $28,177,000 which includes available capacity to allow for annual inflation and other performance and surety bond requirements. |  |  |  |
Total coverage remaining balance under the policy in connection with the release of sinking funds | $ 19,314,000 |  |  |  | $ 30,549,000
Interest earned on sinking fund |  |  | 1,836,000 | 1,500,000 |
Interest income, other |  |  | $ 336,000 | $ 295,000 |
Insurers obligation to entity on termination of contract |  |  | 100.00% |  |

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- 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. + References No definition available. + Details
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- Definition Sinking funds received. + References No definition available. + Details
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- Definition Sinking funds description. + References No definition available. + Details
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- Definition Total coverage remaining balance under the policy in connection with the release of sinking funds. + References No definition available. + Details
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- Details
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