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Debt - Narrative (Details) - USD ($)
3 Months Ended 30 Months Ended
Jan. 16, 2020
Nov. 29, 2019
Mar. 29, 2019
Mar. 31, 2020
Dec. 31, 2019
Jun. 30, 2019
Mar. 31, 2019
Dec. 31, 2021
Nov. 25, 2019
Line of Credit Facility [Line Items]                  
Credit line borrowings, net of loan origination fees       $ 790,000 $ 715,000        
Accumulated Interest on Subordinated Debt $ 100,000                
Preferred stock, par value (in usd per share)       $ 0.0001 $ 0.0001        
Debt Instrument, Proceeds To Be Paid To Lender, Percent       10.00%          
Payments on the Iliad Note       $ 226,000     $ 0    
Proceeds from Issuance or Sale of Equity       $ 275,000          
Convertible Debt                  
Line of Credit Facility [Line Items]                  
Proceeds from issuance of subordinated convertible promissory notes     $ 1,700,000            
Debt Instrument, Face Amount             $ 1,700,000    
Interest rate on convertible notes           5.00%      
Debt Instrument, Unamortized Discount (Premium) and Debt Issuance Costs, Net $ 40,000.00                
Conversion rate (in dollars per share) $ 0.67           $ 0.67    
Conversion of notes to preferred stock       2,709,018          
net proceeds from the conversion of convertible debt to preferred stock $ 1,800,000                
Preferred stock, par value (in usd per share)       $ 0.0001          
Note Purchase Agreement [Member]                  
Line of Credit Facility [Line Items]                  
Debt Instrument, Interest Rate, Stated Percentage                 8.00%
Debt Instrument, Face Amount                 $ 1,300,000
Debt Instrument, Unamortized Discount (Premium) and Debt Issuance Costs, Net       $ 200,000 $ 200,000        
Proceeds from Issuance of Debt         1,100,000        
Unamortized debt issuance costs                 15,000
Debt Instrument, Unamortized Premium                 142,000
Debt Instrument Prepayment Premium Percent   15.00%              
Debt Instrument, Repurchase Amount                 $ 150,000
Debt Instrument, Increase In Amount Outstanding From Becoming Delisted, Percent   15.00%              
Long-term Debt, Gross       900,000 1,000,000.0        
Debt Instrument, Proceeds To Be Paid To Lender, Percent   10.00%              
Debt Instrument, Increase From Exercises Of Restricted Issuance, Percent   3.00%              
Note Payable, Percentage Increase Due to Deferral of Redemption Option   1.50%              
Payments on the Iliad Note       226,000          
Debt Instrument, Increase In Amount Outstanding From Insolvency And Bankruptcy Event, Percent   5.00%              
Debt Instrument, Interest Rate After Insolvency And Bankruptcy Events, Percent   22.00%              
Note Purchase Agreement [Member] | Minimum                  
Line of Credit Facility [Line Items]                  
Debt Instrument, Increase In Amount Outstanding From Default Event, Percent   5.00%              
Note Purchase Agreement [Member] | Maximum                  
Line of Credit Facility [Line Items]                  
Debt Instrument, Increase In Amount Outstanding From Default Event, Percent   15.00%              
Note Purchase Agreement [Member] | Debt Instrument, Period Two [Member]                  
Line of Credit Facility [Line Items]                  
Debt Instrument Prepayment Premium Percent   10.00%              
Subsequent Event                  
Line of Credit Facility [Line Items]                  
Interest rate on convertible notes               10.00%  
Revolving Credit Facility                  
Line of Credit Facility [Line Items]                  
Credit line borrowings, net of loan origination fees       800,000 700,000        
Unamortized Debt Issuance Expense       $ 100,000 $ 100,000        
Debt Instrument, Basis Spread on Variable Rate       2.00%          
Debt Instrument, Interest Rate, Stated Percentage       5.25% 6.75%        
LineofCreditFacilityOverdraftFeePercentage       2.00%          
LineOfCreditFacilityAnnualFacilityFeePercent       1.00%          
Line of Credit Facility, Maximum Borrowing Capacity       $ 5,000,000.0          
Debt Instrument, Term       3 years          
LineOfCreditFacilityCollateralManagementFee       0.50%          
Preferred Stock                  
Line of Credit Facility [Line Items]                  
Conversion of notes to preferred stock       2,709,000