XML 87 R70.htm IDEA: XBRL DOCUMENT v3.19.1
Receivables - (Details) - USD ($)
$ in Thousands
12 Months Ended
Apr. 27, 2019
Apr. 28, 2018
Receivables    
Allowance for doubtful accounts $ 2,208 $ 2,151
Retainage on construction-type contracts, expected to be collected in one year 440 964
Financing Receivable    
Receivables    
Long-term contracts and lease receivables, present value 3,514 3,393
Long-term contracts and lease receivables, face amount $ 3,271 $ 3,733
Financing Receivable | Minimum    
Receivables    
Contract and lease receivables annual interest rates 4.80%  
Financing Receivable | Maximum    
Receivables    
Contract and lease receivables annual interest rates 9.00%