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Liquidity and Going Concern Uncertainty (Details) - USD ($)
3 Months Ended
Jun. 26, 2020
Apr. 10, 2020
Mar. 31, 2020
Dec. 31, 2019
Mar. 31, 2019
Oct. 01, 2019
Dec. 31, 2018
Line of Credit Facility [Line Items]              
Cash     $ 2,059,000 $ 4,602,000 $ 1,589,000   $ 2,007,000
Working capital     (895,000)        
Net loss     3,129,000   598,000    
Net cash used in operating activities     2,536,000   $ 408,000    
Decrease in operating expenses     $ 1,081,000        
Decrease in operating expenses, percentage     19.00%        
Operating expenses     $ 4,575,000 $ 5,656,000      
Term Loan Facility | SVB Loan Agreement              
Line of Credit Facility [Line Items]              
Term loan facility           $ 5,247,000  
Subsequent Events | PPP Loan              
Line of Credit Facility [Line Items]              
Proceeds from issuance of debt   $ 2,416,600          
Debt term   2 years          
Fixed rate   1.00%          
Subsequent Events | Term Loan Facility | SVB Loan Agreement, Amendment              
Line of Credit Facility [Line Items]              
Principal payment $ 291,500