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Notes Payable - Additional Information (Details) - USD ($)
1 Months Ended 9 Months Ended
May 07, 2020
Feb. 18, 2018
Feb. 17, 2018
Aug. 31, 2020
Feb. 29, 2020
Aug. 31, 2019
Feb. 28, 2019
Oct. 31, 2018
Mar. 31, 2016
Sep. 30, 2020
Debt Instrument [Line Items]                    
Stated interest rate                   8.00%
Senior Secured Convertible Notes due August 15 2018                    
Debt Instrument [Line Items]                    
Stated interest rate               8.00% 10.00%  
Principal amount                 $ 8,000,000  
Redemption purchase price   100.00% 120.00%              
Minimum ownership percentage triggering event for redemption of notes                 40.00%  
Maximum amount of indebtedness subordinated by security interest and cash payment rights under debt instruments                 $ 5,000,000  
Payment on principle amount of note               $ 7,400,000    
Senior Secured Convertible Notes due August 15 2018 | Maximum                    
Debt Instrument [Line Items]                    
Period for outstanding balance of accounts receivable has not recorded an allowance for doubtful accounts                 90 days  
Senior Secured Convertible Notes due August 15 2018 | Minimum                    
Debt Instrument [Line Items]                    
Percentage of beneficial ownership if effective upon conversion date of debt instrument                 19.90%  
Senior Secured Convertible Notes due August 15, 2023                    
Debt Instrument [Line Items]                    
Conversion price               $ 11.434 $ 170.00  
Outstanding Notes payable                   $ 3,100,000
Interest Note and Accrued Interest                    
Debt Instrument [Line Items]                    
Conversion price                   $ 11.434
Semi-annual interest payments       $ 122,000 $ 112,000 $ 109,000 $ 78,000      
Number of shares issuable if notes converted to shares of common stock                   271,121
Beneficial ownership ceiling                   9.90%
Promissory Note | Paycheck Protection Program                    
Debt Instrument [Line Items]                    
Stated interest rate 1.00%                  
Principal amount $ 579,330                  
Debt instrument term 2 years                  
Monthly payment beginning date Mar. 31, 2021                  
Principal payments due in 2021 $ 244,000                  
Principal payments due in 2022 292,000                  
Principal payments due in 2023 $ 43,330