XML 55 R43.htm IDEA: XBRL DOCUMENT v3.20.2
Note 8 - Notes Payable (Details Textual) - USD ($)
Apr. 27, 2020
Nov. 04, 2019
May 23, 2018
Hercules Loan Agreement [Member]      
Extinguishment of Debt, Amount   $ 16,400,000  
Payment for Debt Extinguishment or Debt Prepayment Cost   1,400,000  
Gain (Loss) on Extinguishment of Debt, Total   $ (1,000,000.0)  
Paycheck Protection Program CARES Act [Member]      
Proceeds from Issuance of Long-term Debt, Total $ 2,815,200    
Debt Instrument, Term (Year) 2 years    
Debt Instrument, Interest Rate, Stated Percentage 1.00%    
Hercules Loan Agreement [Member]      
Long-term Debt, Percentage Bearing Fixed Interest, Percentage Rate     10.05%
Debt Instrument, Fee Amount     $ 400,000
Debt Issuance Costs, Net, Total     $ 1,100,000
Percentage of Prepayment Fee, First Year After Initial Funding Date     3.00%
Percentage of Prepayment Fee, Second Year After Initial Funding Date     2.00%
Percentage of Prepayment Fee, Third Year After Initial Funding Date and Thereafter     1.00%
Debt Instrument, Prepayment, Final Fee, Percentage     6.95%
Percentage of Outstanding Principal Balance of Term Loan Required to be Maintained     120.00%
Percentage of Maintained Cash and Investment Property in Accounts of Aggregate Cash of Parent and Subsidiaries     80.00%
Debt Instrument, Collateral Amount     $ 2,000,000.0
Hercules Loan Agreement [Member] | Prime Rate [Member]      
Debt Instrument, Basis Spread on Variable Rate     5.00%