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Property, Plant, and Equipment and Other Assets (Details Narrative) - USD ($)
$ in Thousands
1 Months Ended 3 Months Ended
Sep. 30, 2019
Mar. 31, 2021
Mar. 31, 2020
Depreciation expense   $ 189 $ 342
Gain (loss) on disposition of property plant equipment   $ 1 $ 30
Electrical Contract [Member]      
Payments for deposits $ 120