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Bank Debt (Details) - Hitachi Capital America Corp. - USD ($)
Mar. 12, 2020
Feb. 28, 2020
Mar. 31, 2022
Debt Instrument [Line Items]      
Commitment fee   $ 50,000  
Percentage due upon execution of agreement 50.00%    
Balance due, term   6 months  
Annual commitment fee amount   $ 15,000  
Quarterly service fee (as a percentage)   0.30%  
Outstanding balance     $ 0
Loan And Security Agreement      
Debt Instrument [Line Items]      
Line of credit facility, maximum borrowing capacity   $ 5,000,000  
Percentage of aggregate eligible accounts receivable   90.00%  
Percentage of aggregate unbilled accounts receivable   75.00%  
Percentage of amount available to borrow under maximum credit commitment   50.00%  
Stated interest rate   6.75%  
Monthly Interest | Loan And Security Agreement      
Debt Instrument [Line Items]      
Stated interest rate   2.00%