Quarterly report pursuant to Section 13 or 15(d)

Long term debt (Details)

v3.20.4
Long term debt (Details)
$ in Thousands, SFr in Millions
1 Months Ended 6 Months Ended
Jan. 31, 2021
USD ($)
Apr. 30, 2020
CHF (SFr)
Nov. 30, 2018
USD ($)
Jan. 31, 2021
USD ($)
Apr. 30, 2020
USD ($)
Long term debt (Details) [Line Items]          
Debt instrument, face amount     $ 4,500    
Debt instrument maturity period     10 years    
Debt instrument, interest rate, stated percentage     5.09%    
Debt instrument, periodic payment     $ 30    
Amortization of debt issuance costs     $ 72    
Unamortized debt issuance expense $ 57     $ 57  
Mortgage agreement 4,200     4,200  
Cash collateral for borrowed securities 750     $ 750  
Operating lease, description       We assumed from the seller an operating lease for a tenant at the facility which expired on June 30, 2020.  
Liquid assets 25,000     $ 25,000  
Foreign exchange rate amount $ 400 SFr 0.4      
Bear interest rate 0.00%     0.00%  
Long term debt term 5 years     5 years  
Fixed interest rate, description       PPP loans have a 1% fixed interest rate and are due from two to five years.  
Maturity date, description       The PPP Loan matures on April 17, 2022 (the “Maturity Date”), accrues interest at 1% per annum and may be prepaid in whole or in part without penalty.  
Intention to audit loans in excess $ 2,000     $ 2,000  
Excess loans $ 2,000     $ 2,000  
Citibank N.A [Member]          
Long term debt (Details) [Line Items]          
Cash collateral for borrowed securities         $ 7,000