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Significant Accounting Policies, Contracts Receivable (Details) - Partner | 9 Months Ended | 12 Months Ended
--- | --- | ---
Sep. 30, 2021 | Dec. 31, 2020
Contracts Receivable [Abstract] |  |
Period of time after billing when payment is received | 3 months |
Significant Partners [Abstract] |  |
Number of significant customers | 3 | 2
Contracts Receivables [Member] | Credit Concentration [Member] | Three Significant Customers [Member] |  |
Significant Partners [Abstract] |  |
Concentration percentage | 58.30% |
Contracts Receivables [Member] | Credit Concentration [Member] | Two Significant Customers [Member] |  |
Significant Partners [Abstract] |  |
Concentration percentage |  | 99.50%

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- Definition The time period between billing a collaboration partner for goods delivered or services performed that are due unconditionally and payment is received from the collaboration partner, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
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