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Allowance for Doubtful Accounts
 12 Months Ended
Dec. 31, 2021
Allowance for Doubtful Accounts [Abstract]  
Allowance for Doubtful Accounts Allowance for Doubtful Accounts
 
The activity in the allowance for doubtful accounts was as follows during the years ended December 31, 2021 and 2020:
 
 20212020
Balance at the beginning of the year$209,667 $225,000 
Provision for bad debts7,487 135,000 
Charge-offs(16,154)(150,333)
Recoveries1,904 — 
Balance at the end of the year$202,904 $209,667