Related Party Transactions (Details) - USD ($)  | 
3 Months Ended | 9 Months Ended | 12 Months Ended | ||
|---|---|---|---|---|---|
Sep. 30, 2021  | 
Sep. 30, 2020  | 
Sep. 30, 2021  | 
Sep. 30, 2020  | 
Dec. 31, 2020  | 
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| Related Party Transaction [Line Items] | |||||
| Monthly rent expense | $ 1,440 | ||||
| Affiliated Entity | Accounting Services | CTRLCFO And Hardesty | |||||
| Related Party Transaction [Line Items] | |||||
| Expenses from transactions with related parties | $ 30,000 | $ 48,000 | 80,000 | $ 57,000 | |
| Balance due to related parties | $ 7,000 | 7,000 | $ 15,000 | ||
| Management | 2015 Notes Investments | |||||
| Related Party Transaction [Line Items] | |||||
| Investments from related parties | 2,345,000 | 1,797,000 | |||
| Consultants | 2015 Notes Investments | |||||
| Related Party Transaction [Line Items] | |||||
| Investments from related parties | $ 1,045,000 | $ 661,000 | |||
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- Definition Lessee, Operating Lease, Monthly Rent Expense No definition available. 
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- Definition Carrying amount as of the balance sheet date of obligations due all related parties. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef 
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- Definition Amount of transactions with related party during the financial reporting period. Reference 1: http://www.xbrl.org/2003/role/disclosureRef 
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- Definition Expenses recognized resulting from transactions (excluding transactions that are eliminated in consolidated or combined financial statements) with related party. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef 
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available. 
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