Paid settlement agreement with DCMA.

No definition available.

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- Definition

The aggregate cost of goods produced and sold and services rendered during the reporting period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 225
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.2)
-URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688

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- Definition

Amount of the cumulative effect on retained earnings net of related income tax effect.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 250
-SubTopic 10
-Section 50
-Paragraph 9
-URI http://asc.fasb.org/extlink&oid=64853466&loc=d3e22663-107794

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- Definition

Amount, after allocation of valuation allowances and deferred tax liability, of deferred tax asset attributable to deductible differences and carryforwards, netted by jurisdiction and classified as current.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 45
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=75116654&loc=d3e31917-109318

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 45
-Paragraph 6
-URI http://asc.fasb.org/extlink&oid=75116654&loc=d3e31931-109318

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=65882285&loc=d3e32537-109319

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- Definition

Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements.

+ References

No definition available.

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Organization and Significant Accounting Policies (Details) $ in Thousands		1 Months Ended	3 Months Ended		9 Months Ended		12 Months Ended
	May 01, 2016 USD ($)	Oct. 31, 2015 USD ($)	Jan. 28, 2017 USD ($)	Jan. 30, 2016 USD ($)	Jan. 28, 2017 USD ($) segment	Jan. 30, 2016 USD ($)	Apr. 30, 2016 USD ($)
Segments
Number of reportable segments \| segment					2
Paid Settlement agreement		$ 50,000
Cost of sales			$ 33,812	$ 40,935	$ 96,046	$ 105,160
ASBC
Segments
Cost of sales							$ 3,607,000
UAS
Segments
Cost of sales			25,530	36,488	76,549	91,268
UAS \| ASBC
Segments
Cost of sales							3,203,000
EES
Segments
Cost of sales			$ 8,282	$ 4,447	$ 19,497	$ 13,892
EES \| ASBC
Segments
Cost of sales							$ 404,000
Accounting Standards Update 2015-17 \| Adjustment
Segments
Deferred income taxes	$ 5,432,000
Accounting Standards Update 2016-09 \| Adjustment
Segments
Cumulative increase in retained earnings	$ 265,000