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Commitments and Contingencies - Leases (Details) (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Nov. 01, 2014	Oct. 26, 2013
Operating Leased Assets
Operating leases, rent expense	$ 1,377	$ 1,388
Operating Leases, Future Minimum Payments Due, Fiscal Year Maturity
2015	1,369
2016	2,266
2017	1,183
2018	255
2019	18
Total	5,091
January 1, 2015 to December 31, 2016
Operating Leased Assets
Operating leases, purchase option price	8,400
Year ending December 2017
Operating Leased Assets
Operating leases, purchase option price	8,600
Year ending December 2018
Operating Leased Assets
Operating leases, purchase option price	$ 8,800

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Amount of required minimum rental payments for leases having an initial or remaining non-cancelable letter-terms in excess of one year.

+ References

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-Publisher FASB

-Name Accounting Standards Codification

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Amount of required minimum rental payments maturing in the fifth fiscal year following the latest fiscal year for operating leases having an initial or remaining non-cancelable letter-terms in excess of one year.

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Amount of required minimum rental payments maturing in the forth fiscal year following the latest fiscal year for operating leases having an initial or remaining non-cancelable letter-terms in excess of one year.

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Amount of required minimum rental payments maturing in the third fiscal year following the latest fiscal year for operating leases having an initial or remaining non-cancelable letter-terms in excess of one year.

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Amount of required minimum rental payments maturing in the second fiscal year following the latest fiscal year for operating leases having an initial or remaining non-cancelable letter-terms in excess of one year.

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Amount of required minimum rental payments maturing in the remainder of the fiscal year following the latest fiscal year ended for operating leases having an initial or remaining non-cancelable letter-terms in excess of one year.

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