Intangible Assets and Goodwill (Tables)

12 Months Ended

Apr. 29, 2017

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Goodwill Rollforward

The following table shows the roll-forward of goodwill.

	Interface			Power Products		Total
Balance as of May 3, 2014	$	12.0		$	1.0	$	13.0
Impairment	(11.1		)	—		(11.1		)
Foreign currency translation	(0.2		)	—		(0.2		)
Balance as of May 2, 2015	0.7			1.0		1.7
Impairment	—			—		—
Foreign currency translation	—			—		—
Balance as of April 30, 2016	0.7			1.0		1.7
Impairment	—			—		—
Foreign currency translation	(0.1		)	—		(0.1		)
Balance as of April 29, 2017	$	0.6		$	1.0	$	1.6

Schedule of Identifiable Intangible Assets

The following tables present details of our remaining identifiable intangible assets:

	As of April 29, 2017
	Gross		Accumulated Amortization		Net		Wtd. Avg. Remaining Amortization Periods (Years)
Customer relationships and agreements	$	16.3	$	15.6	$	0.7	6.8
Trade names, patents and technology licenses	25.8		19.9		5.9		1.4
Covenants not to compete	0.1		0.1		—		0.4
Total	$	42.2	$	35.6	$	6.6

	As of April 30, 2016
	Gross		Accumulated Amortization		Net		Wtd. Avg. Remaining Amortization Periods (Years)
Customer relationships and agreements	$	16.3	$	15.3	$	1.0	7.8
Trade names, patents and technology licenses	25.8		17.9		7.9		2.4
Covenants not to compete	0.1		0.1		—		1.4
Total	$	42.2	$	33.3	$	8.9

Schedule of Estimated Aggregate Amortization Expense

The estimated aggregate amortization expense for each of the five succeeding fiscal years is as follows:

2018	$	2.2
2019	$	2.1
2020	$	0.2
2021	$	0.1
2022	$	0.1