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Company and Summary of Significant Accounting Policies - Liquidity and Going Concern (Details) - USD ($)
3 Months Ended
Apr. 23, 2020
Mar. 31, 2020
Mar. 31, 2019
Dec. 31, 2019
Accounting Policies [Abstract]        
Period which cash reserves and financing sources are expected to be available to cover expenses   1 year    
Wage reduction due to pandemic, percentage   21.00%    
Retained Earnings (Accumulated Deficit)   $ (66,548,230)   $ (60,384,769)
Net Income (Loss) Attributable to Parent   (6,163,461) $ (1,830,580)  
Cash and cash equivalents   5,634,441   $ 5,884,629
Payments for Operating Activities   $ (1,348,991)    
SBA Loan - Paycheck Protection Program [Member] | Subsequent Event [Member]        
Significant Accounting Policies [Line Items]        
Proceeds from Loans $ 1,905,100