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Summary of Significant Accounting Policies (Components of Accumulated Other Comprehensive Loss) (Details)
 9 Months Ended
Sep. 30, 2021
USD ($)
Accumulated Other Comprehensive Income (Loss) [Line Items]  
BALANCE $ 47,494,727
BALANCE 18,564,955
Foreign Currency Translation [Member]  
Accumulated Other Comprehensive Income (Loss) [Line Items]  
BALANCE (700,000)
Net current period change 700,000
Unrealized Gain (Loss) On Securities [Member]  
Accumulated Other Comprehensive Income (Loss) [Line Items]  
BALANCE 21,000
Net current period change (6,000)
BALANCE 15,000
Accumulated Other Comprehensive Loss [Member]  
Accumulated Other Comprehensive Income (Loss) [Line Items]  
BALANCE (678,767)
Net current period change 694,000
BALANCE $ 15,393