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Retirement Plan (Details) - USD ($)
 12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Retirement Plan      
Maximum employee compensation to be deferred per year $ 17,000    
Maximum employer matching contribution as a percentage of annual compensation 3.00%    
Maximum employee salary that the employer will match $ 200,000    
Company's total contribution under 401 (k) plan $ 100,000 $ 100,000 $ 200,000