Customer-Funded Research & Development	9 Months Ended
Customer-Funded Research & Development	Jan. 28, 2017
Customer-Funded Research & Development
Customer-Funded Research & Development	7. Customer-Funded Research & Development Customer-funded R&D costs are incurred pursuant to contracts (revenue arrangements) to perform R&D activities according to customer specifications. These costs are direct contract costs and are expensed to cost of sales when the corresponding revenue is recognized, which is generally as the R&D services are performed. Revenue from customer-funded R&D was approximately $9,089,000 and $38,367,000 for the three and nine months ended January 28, 2017, respectively. Revenue from customer-funded R&D was approximately $8,877,000 and $35,638,000 for the three and nine months ended January 30, 2016, respectively.

The entire disclosure for research, development, and computer software activities, including contracts and arrangements to be performed for others and with federal government. Includes costs incurred (1) in a planned search or critical investigation aimed at discovery of new knowledge with the hope that such knowledge will be useful in developing a new product or service, a new process or technique, or in bringing about a significant improvement to an existing product or process; or (2) to translate research findings or other knowledge into a plan or design for a new product or process or for a significant improvement to an existing product or process whether intended for sale or the entity's use, during the reporting period charged to research and development projects, including the costs of developing computer software up to the point in time of achieving technological feasibility and in-process research and development acquired in a business combination consummated during the period.