Quarterly report pursuant to Section 13 or 15(d)

Revenue - Schedule of Contract Balances (Details)

v3.21.1
Revenue - Schedule of Contract Balances (Details) - USD ($)
3 Months Ended
Mar. 31, 2021
Mar. 31, 2020
Revenue:    
Accounts Receivable, net, Beginning [1] $ 375,600  
Accounts Receivable, net, Ending 547,800  
Accounts Receivable, net, (Decrease) increase 172,200  
Revenue Contract Assets, Beginning [1] 6,800  
Revenue Contract Assets, Ending  
Revenue Contract Assets, (Decrease) increase (6,800) $ 243,100
Revenue Contract Liabilities, Beginning [1] 323,900  
Revenue Contract Liabilities, Ending 408,500  
Revenue Contract Liabilities, (Decrease) increase 84,600 $ 136,000
Deferred Revenue (current), Beginning 30,200  
Deferred Revenue (current), Ending 22,000  
Deferred Revenue (current), (Decrease) increase (8,200)  
Deferred Revenue (non-current), Beginning [1]  
Deferred Revenue (non-current), Ending  
Deferred Revenue (non-current), (Decrease) increase  
[1] These numbers were derived from the audited financial statements for the year ended December 31, 2020.