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Stock-Based Compensation - Schedule of Stock Options and Warrants Outstanding and Exercisable (Details) - $ / shares
9 Months Ended
Sep. 30, 2021
Dec. 31, 2020
Compensation Related Costs [Abstract]    
Outstanding and exercisable 6,000 121,600
Range of exercise prices, outstanding and exercisable $ 3.57 $ 7.09
Weighted average remaining contractual life (years), outstanding and exercisable 2 months 1 day