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Summary of Significant Accounting Policies (Details) - USD ($)
Mar. 31, 2021
Dec. 31, 2020
Assets:    
Cash and money market accounts $ 6,806,650 $ 6,949,937
Bank certificates of deposit   996,495
Total   7,946,432
Liabilities:    
Bank debt (9,311,342) (9,497,486)
Fair Value, Inputs, Level 1 [Member]    
Assets:    
Cash and money market accounts 6,806,650 6,949,937
Bank certificates of deposit  
Total   6,949,937
Liabilities:    
Bank debt
Fair Value, Inputs, Level 2 [Member]    
Assets:    
Cash and money market accounts
Bank certificates of deposit   996,495
Total   996,495
Liabilities:    
Bank debt (9,311,342) (9,497,486)
Fair Value, Inputs, Level 3 [Member]    
Assets:    
Cash and money market accounts
Bank certificates of deposit  
Total  
Liabilities:    
Bank debt