XML 69 R42.htm IDEA: XBRL DOCUMENT v3.21.2
Long-term Debt and Other Credit Arrangements - Additional Information (Detail) - USD ($)
12 Months Ended
Apr. 30, 2021
Apr. 27, 2021
Apr. 30, 2020
Feb. 01, 2020
Dec. 13, 2019
May 06, 2013
Debt Instrument [Line Items]            
Loan agreement           $ 20,000,000
Collateralized debt instrument, borrowing capacity       $ 15,000,000 $ 20,000,000  
Minimum EBITDA covenant requirement for year end FY21 $ 1,000,000          
EBIDTA increase by scheduled one-time non-recurring addbacks threshold amount   $ 250,000        
EBITDA increase by solely for the fourth-quarter period ending April 30, 2021 one-time addback threshold amount   $ 600,000        
Unused and available credit facility 7,500,000          
Expiration Date, Period One | Bank Guarantees            
Debt Instrument [Line Items]            
Bank Guarantees outstanding to customers 6,000,000.0   $ 6,000,000.0      
Term Loan A            
Debt Instrument [Line Items]            
Credit facility outstanding           3,450,000
Term Loan B            
Debt Instrument [Line Items]            
Credit facility outstanding           $ 1,550,000
Term Loan B | Expiration Date, Period One            
Debt Instrument [Line Items]            
Bank Guarantees outstanding to customers     1,600,000      
Term Loan B | Expiration Date, Period Two            
Debt Instrument [Line Items]            
Bank Guarantees outstanding to customers 3,200,000   297,000      
Term Loan B | Expiration Date, Period Three            
Debt Instrument [Line Items]            
Bank Guarantees outstanding to customers 61,000   74,000      
Term Loan B | Expiration Date, Period Four            
Debt Instrument [Line Items]            
Bank Guarantees outstanding to customers 18,000          
Term Loan B | Expiration Date, Period Five            
Debt Instrument [Line Items]            
Bank Guarantees outstanding to customers 9,000          
Term Loan B | Expiration Date, Period Six            
Debt Instrument [Line Items]            
Bank Guarantees outstanding to customers 257,000          
Advance Amount One            
Debt Instrument [Line Items]            
Credit facility outstanding 6,800,000   4,700,000      
Advance Amount Two            
Debt Instrument [Line Items]            
Credit facility outstanding $ 704,000   $ 512,000      
Advances            
Debt Instrument [Line Items]            
Interest rate at period end 4.75%   4.13%      
Line of Credit | Base Rate            
Debt Instrument [Line Items]            
Debt, variable interest rate 0.75%          
Line of Credit | LIBOR            
Debt Instrument [Line Items]            
Debt, variable interest rate 4.00%