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Schedule of Trade Accounts Receivable Allowance (Details) - USD ($)
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Beginning balance $ (804,937) $ (695,547)
Reclassified to discontinued operations 804,937  
Additions to allowance 0 109,390
Bad debt written-off 0 0
Ending balance $ 0 $ (804,937)