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Summary of Accounting Policies - Schedule of Deferred Revenue Activity (Details) - USD ($)
9 Months Ended
Sep. 30, 2021
Sep. 30, 2020
Deferred Revenue [Abstract]    
Balance at beginning of period $ 345,000 $ 39,000
Consideration earned during the period (506,000) (303,000)
Recognized during the period 402,000 94,000
Balance at end of period $ 449,000 $ 248,000