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Goodwill and Other Intangible Assets
3 Months Ended
Mar. 31, 2022
Goodwill and Intangible Assets Disclosure [Abstract]  
Goodwill and Other Intangible Assets Goodwill and Other Intangible Assets
The gross carrying amount and accumulated amortization of goodwill and other intangible assets as of March 31, 2022 and December 31, 2021 are as follows: 
March 31, 2022December 31, 2021
Goodwill$4,150,339 $4,150,339 
Other intangible assets:  
Gross carrying amount$4,038,138 $4,038,138 
Accumulated amortization(3,997,312)(3,986,776)
Net carrying amount$40,826 $51,362 

    For the three months ended March 31, 2022 and 2021, amortization expense was $10,536 and $16,082, respectively.