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Cash Flow Information
 12 Months Ended
Apr. 26, 2014
Supplemental Cash Flow Information [Abstract]  
Cash Flow Information
Cash Flow Information

The changes in operating assets and liabilities consisted of the following:
 
Year Ended
 
April 26,
2014
 
April 27,
2013
 
April 28,
2012
(Increase) decrease:
 
 
 
 
 
Restricted cash
$
(466
)
 
$
1,120

 
$
377

Accounts receivable
(18,293
)
 
3,364

 
(4,995
)
Long-term receivables
3,027

 
2,348

 
462

Inventories
(12,771
)
 
6,656

 
(7,539
)
Costs and estimated earnings in excess of billings
5,955

 
(16,335
)
 
1,173

Prepaid expenses and other current assets
(536
)
 
(658
)
 
784

Income taxes receivable
(2,414
)
 
5,944

 
(1,120
)
Advertising rights and other assets
64

 
386

 
226

Increase (decrease):
 

 
 

 
 

Accounts payable and accrued expenses
6,867

 
7,658

 
6,975

Customer deposits
4,930

 
(450
)
 
1,538

Billings in excess of costs and estimated earnings
8,238

 
(140
)
 
(5,899
)
Long-term warranty obligations
2,103

 
2,932

 
(767
)
Income taxes payable
(527
)
 
1,023

 
(215
)
Long-term deferred revenue
(835
)
 
(576
)
 
783

Other long-term obligations
(130
)
 
(169
)
 
(915
)
 
$
(4,788
)
 
$
13,103

 
$
(9,132
)


Supplemental disclosures of cash flow information consisted of the following:
 
Year Ended
 
April 26,
2014
 
April 27,
2013
 
April 28,
2012
Cash payments for:
 
 
 
 
 
Interest
$
198

 
$
420

 
$
306

Income taxes, net of refunds
16,521

 
5,422

 
4,292



Supplemental schedule of non-cash investing and financing activities consisted of the following:
 
 
Year Ended
 
 
April 26,
2014
 
April 27,
2013
 
April 28,
2012
Demonstration equipment transferred to inventory
 
$
255

 
$
612

 
$
409

Purchases of property and equipment included in accounts payable
 
2,099

 
1,207

 
1,475

Contributions of common stock under the employee stock purchase plan
 
1,552

 
1,482

 
1,413