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Write-Off of Deposit (Details Narrative) - Letter of Intent [Member] - Clean Energy Technology Association, Inc. [Member] - USD ($)
$ in Thousands
1 Months Ended 3 Months Ended 12 Months Ended
Apr. 30, 2020
Dec. 31, 2017
Mar. 31, 2020
Dec. 31, 2018
Option purchased to acquire shares   50    
Option payment   $ 250 $ 200 $ 124
Allowance due to uncertainity of collection of deposit     $ 75  
Subsequent Event [Member]        
Option payment $ 25