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Credit Facility - Additional Information (Details) - Wells Fargo Bank, National Association - Credit Facility - USD ($)
6 Months Ended
Jun. 30, 2022
Mar. 31, 2022
Line Of Credit Facility [Line Items]    
Secured revolving credit facility   $ 7,000,000
Ratio of sum of cash plus marketable securities, plus accounts receivable to principal balance outstanding of Credit Facility 2.0  
Borrowings outstanding $ 0  
Secured Overnight Financing Rate    
Line Of Credit Facility [Line Items]    
Basis spread on variable rate 2.00%  
Letters of credit    
Line Of Credit Facility [Line Items]    
Secured revolving credit facility   $ 500,000