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Nature of Business and Summary of Significant Accounting Policies (Tables)

12 Months Ended

Apr. 30, 2016

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Schedule of Property and Equipment

Property and equipment is stated at cost and depreciated principally on the straight-line method over the following estimated useful lives:

	Years
Buildings	7 - 40
Machinery and equipment	5 - 7
Office furniture and equipment	3 - 5
Computer software and hardware	3 - 5
Equipment held for rental	2 - 7
Demonstration equipment	3 - 5
Transportation equipment	5 - 7

Property and equipment consisted of the following:

	April 30, 2016				May 2, 2015
Land	$	2,155			$	2,147
Buildings	65,247				64,186
Machinery and equipment	82,973				80,664
Office furniture and equipment	14,746				15,823
Computer software and hardware	48,917				51,083
Equipment held for rental	374				803
Demonstration equipment	8,026				7,299
Transportation equipment	6,596				6,012
	229,034				228,017
Less accumulated depreciation	155,871				155,173
	$	73,163			$	72,844

Schedule of Earnings Per Share Reconciliation

The following is a reconciliation of the income and common stock share amounts used in the calculation of basic and diluted EPS for the fiscal years ended April 30, 2016, May 2, 2015 and April 26, 2014:

	Net income				Shares			Per share income (loss)
For the year ended April 30, 2016:
Basic earnings per share	$	2,061			43,990			$	0.05
Dilution associated with stock compensation plans	—				466			—
Diluted earnings per share	$	2,061			44,456			$	0.05
For the year ended May 2, 2015:
Basic earnings per share	$	20,882			43,514			$	0.48
Dilution associated with stock compensation plans	—				929			(0.01		)
Diluted earnings per share	$	20,882			44,443			$	0.47
For the year ended April 26, 2014:
Basic earnings per share	$	22,206			42,886			$	0.52
Dilution associated with stock compensation plans	—				876			(0.01		)
Diluted earnings per share	$	22,206			43,762			$	0.51

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- References

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- Definition

Tabular disclosure of physical assets used in the normal conduct of business and not intended for resale. Includes, but is not limited to, balances by class of assets, depreciation and depletion expense and method used, including composite depreciation, and accumulated deprecation.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 360
-SubTopic 10
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(13))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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- Definition

Tabular disclosure of an entity's basic and diluted earnings per share calculations, including a reconciliation of numerators and denominators of the basic and diluted per-share computations for income from continuing operations.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257

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