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AT&T Agreement (Tables) | 12 Months Ended
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Dec. 31, 2020
ATT Agreement [Abstract] |
Shedule of Black-Scholes option-pricing mode |
|  | December 31, 2020 |  | December 31, 2019
OPM Inputs/Assumptions |  | Values |  | Values
Equity Value |  | $ | 525,034,000 |  |  | 20,369,000 |
Holding Period/Term (years) |  |  | 3.00 |  |  | 5.00 |
Volatility |  |  | 59.50 | % |  | 51.00 | %
Risk-Free Rate |  |  | 0.17 | % |  | 1.67 | %
Discount for Lack of Marketability |  |  | 10.0 | % |  | 9.5 | %

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- Definition Tabular disclosure of input and valuation technique used to measure fair value and change in valuation approach and technique for each separate class of asset and liability measured on recurring and nonrecurring basis. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (bbb) -URI http://asc.fasb.org/extlink&oid=123874694&loc=d3e19207-110258 + Details
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