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Commitments and Contingencies (Details Narrative) - USD ($) | 1 Months Ended | 3 Months Ended | 12 Months Ended
--- | --- | --- | ---
Jun. 30, 2003 | Mar. 31, 2024 | Mar. 31, 2023 | Dec. 31, 2023
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Self-insured retention |  | $ 100,000 |  |
Restricted cash, noncurrent |  | 12,222,000 |  | $ 12,074,000
Interest income |  | 174,000 | $ 127,000 |
Letters of credit outstanding, amount |  | 3,950,000 |  |
Bond outstanding |  | 26,747,000 |  |
American International Group, Inc [Member] |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Period of finite risk insurance policy | 25 years |  |  |
Maximum allowable coverage of insurance policy |  | 28,177,000 |  |
Coverage amount under the policy |  | 23,376,000 |  |
Restricted cash, noncurrent |  | 12,222,000 |  | 12,074,000
Interest income |  | $ 148,000 | $ 67,000 |
Insurers obligation to entity on termination of contract |  | 100.00% |  |
American International Group, Inc [Member] | Finite Risk Sinking Funds [Member] |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Interest income |  | $ 2,751,000 |  | 2,603,000
Canadian Nuclear Laboratories LTD [Member] |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Outstanding receivables |  | $ 1,612,000 |  | $ 2,389,000

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