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Income Taxes (Tables)
12 Months Ended
May. 02, 2015
Income Tax Disclosure [Abstract]  
Schedule of Pretax Income Domestic and Foreign
The pretax income attributable to domestic and foreign operations was as follows:
 
Year Ended
 
May 2,
2015
 
April 26,
2014
 
April 27,
2013
Domestic
$
29,194

 
$
35,699

 
$
27,667

Foreign
2,489

 
1,542

 
3,262

Income before income taxes
$
31,683

 
$
37,241

 
$
30,929

Schedule of Components of Income Tax Expense
Income tax expense consisted of the following:
 
Year Ended
 
May 2,
2015
 
April 26,
2014
 
April 27,
2013
Current:
 
 
 
 
 
Federal
$
6,657

 
$
11,342

 
$
9,517

State
1,150

 
1,454

 
2,219

Foreign
848

 
696

 
754

Deferred:
 
 
 
 
 
Federal
1,906

 
1,241

 
(3,114
)
State
307

 
667

 
(1,090
)
Foreign
(67
)
 
(365
)
 
(136
)
 
$
10,801

 
$
15,035

 
$
8,150

Schedule of Effective Income Tax Rate Reconciliation
A reconciliation of the provision for income taxes and the amount computed by applying the federal statutory rate to income before income taxes is as follows:
 
 
Year Ended
 
 
May 2,
2015
 
April 26,
2014
 
April 27,
2013
Computed income tax expense (benefit) at federal, state and local jurisdiction statutory rates
 
$
11,089

 
$
13,035

 
$
10,825

State taxes, net federal benefit
 
1,016

 
1,433

 
684

Research and development tax credit
 
(1,292
)
 
(750
)
 
(1,804
)
Meals and entertainment
 
369

 
344

 
308

Stock compensation
 
566

 
586

 
466

Dividends paid to retirement plan
 
(352
)
 
(328
)
 
(616
)
Domestic production activities deduction
 
(529
)
 
(1,012
)
 
(976
)
Change in valuation allowances
 
(2,295
)
 
2,301

 

Change in uncertain tax positions
 
2,357

 
111

 
(70
)
Other, net
 
(128
)
 
(685
)
 
(667
)
 
 
$
10,801

 
$
15,035

 
$
8,150

Schedule of Deferred Tax Assets and Liabilities
The components of the net deferred tax asset were as follows:
 
May 2,
2015
 
April 26,
2014
Deferred tax assets:
 
 
 
Warranty reserves
$
10,038

 
$
10,432

Vacation accrual
1,808

 
1,510

Net losses on equity investments

 
2,870

Deferred maintenance revenue
745

 
1,332

Reserves for excess and obsolete inventory
939

 
981

Equity compensation
828

 
899

Allowance for doubtful accounts
613

 
797

Inventory capitalization
531

 
306

Accrued compensation and benefits
1,124

 
1,397

Intangible assets

 
56

Unrealized loss on foreign currency exchange
554

 
206

Net operating loss carry forwards
791

 
766

Other
344

 
379

 
18,315

 
21,931

Valuation allowance on equity investments
(52
)
 
(2,297
)
 
18,263

 
19,634

 
 
 
 
Deferred tax liabilities:
 

 
 

Property and equipment
(7,249
)
 
(6,232
)
Prepaid expenses
(577
)
 
(574
)
Other
(34
)
 
(162
)
 
(7,860
)
 
(6,968
)
 
$
10,403

 
$
12,666

Schedule of Deferred Tax Assets and Liabilities Current and Non Current
The classification of net deferred tax assets in the accompanying consolidated balance sheets is:
 
May 2,
2015
 
April 26,
2014
Current assets
$
10,640

 
$
10,694

Current liabilities

 
(27
)
Non-current assets
702

 
2,000

Non-current liabilities
(939
)
 
(1
)
 
$
10,403

 
$
12,666

Reconciliation of Unrecognized Tax Benefits
The changes in the amounts recorded for uncertain tax positions are:
 
May 2, 2015
April 26, 2014
April 27, 2013
Balance at beginning of year
$
494

$
379

$
449

Gross increases related to prior period tax positions
6

16


Gross decreases related to prior period tax positions


(11
)
Gross increases related to current period tax positions
2,496

99

129

Lapse of statute of limitations
(105
)

(188
)
Balance at end of year
$
2,891

$
494

$
379