Annual report pursuant to Section 13 and 15(d)

Schedule of Prepaid Expenses and Other Current Assets (Details) (Parenthetical)

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Schedule of Prepaid Expenses and Other Current Assets (Details) (Parenthetical) - Common Stock [Member] - I Heart Media [Member] - USD ($)
$ in Millions
Mar. 05, 2020
Aug. 28, 2019
Shares issued to third-parties for services 20,834 166,667
Stock issued during period, value, issued for services $ 0.1 $ 3.4