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Real Estate Held for Sale (Details Narrative) $ in Thousands | 12 Months Ended |
--- | --- | ---
Dec. 31, 2020 USD ($) | Mar. 31, 2021 USD ($) ft²
Lease area | ft² |  | 30,400
Realizable value for additional land |  | $ 653
Loss on land and building | $ 1,054 |
Minimum [Member] |  |
Realizable value |  | 700
Realizable value for additional land |  | 250
Maximum [Member] |  |
Realizable value |  | 900
Realizable value for additional land |  | $ 300
Wyoming [Member] |  |
Lease area | ft² |  | 13

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