Receivables	6 Months Ended
Nov. 02, 2019
Receivables [Abstract]
Receivables	Note 10. Receivables We invoice customers based on a billing schedule as established in our contracts. We sometimes have the ability to file a contractor’s lien against the product installed as collateral and to file claims against surety bonds to protect our interest in receivables. Foreign sales are at times secured by irrevocable letters of credit or bank guarantees. Accounts receivable are reported net of an allowance for doubtful accounts of $2,516 and $2,208 at November 2, 2019 and April 27, 2019, respectively. Included in accounts receivable as of November 2, 2019 and April 27, 2019 was $717 and $440, respectively, of retainage on construction-type contracts, all of which is expected to be collected within one year. In some contracts with customers, we agree to installment payments exceeding 12 months. The present value of these contracts and leases are recorded as a receivable as the revenue is recognized in accordance with GAAP, and profit is recognized to the extent the present value is in excess of cost. We generally retain a security interest in the equipment or in the cash flow generated by the equipment until the contract is paid. The present value of long-term contracts and lease receivables, including accrued interest and current maturities, was $6,325 and $3,514 as of November 2, 2019 and April 27, 2019, respectively. Contract and lease receivables bearing annual interest rates of 5.0 to 9.0 percent are due in varying annual installments through 2024. The face value of long-term receivables was $5,234 as of November 2, 2019 and $3,271 as of April 27, 2019.

Note 10. Receivables

We invoice customers based on a billing schedule as established in our contracts. We sometimes have the ability to file a contractor’s lien against the product installed as collateral and to file claims against surety bonds to protect our interest in receivables. Foreign sales are at times secured by irrevocable letters of credit or bank guarantees. Accounts receivable are reported net of an allowance for doubtful accounts of $2,516 and $2,208 at November 2, 2019 and April 27, 2019, respectively. Included in accounts receivable as of November 2, 2019 and April 27, 2019 was $717 and $440, respectively, of retainage on construction-type contracts, all of which is expected to be collected within one year.

In some contracts with customers, we agree to installment payments exceeding 12 months. The present value of these contracts and leases are recorded as a receivable as the revenue is recognized in accordance with GAAP, and profit is recognized to the extent the present value is in excess of cost. We generally retain a security interest in the equipment or in the cash flow generated by the equipment until the contract is paid. The present value of long-term contracts and lease receivables, including accrued interest and current maturities, was $6,325 and $3,514 as of November 2, 2019 and April 27, 2019, respectively. Contract and lease receivables bearing annual interest rates of 5.0 to 9.0 percent are due in varying annual installments through 2024. The face value of long-term receivables was $5,234 as of November 2, 2019 and $3,271 as of April 27, 2019.