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

12 Months Ended

May. 02, 2015

Organization, Consolidation and Presentation of Financial Statements [Abstract]

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:



	May 2, 2015		April 26, 2014
Land	$	2,147	$	2,539
Buildings	64,186		59,363
Machinery and equipment	80,664		72,787
Office furniture and equipment	15,823		15,754
Computer software and hardware	51,083		45,329
Equipment held for rental	803		868
Demonstration equipment	7,299		7,532
Transportation equipment	6,012		4,823
	228,017		208,995
Less accumulated depreciation	155,173		143,725
	$	72,844	$	65,270

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 May 2, 2015, April 26, 2014 and April 27, 2013:



	Net income		Shares	Per share income (loss)
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
For the year ended April 27, 2013:
Basic earnings per share	$	22,779	42,280	$	0.54
Dilution associated with stock compensation plans	—		341	(0.01		)
Diluted earnings per share	$	22,779	42,621	$	0.53