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UPDATES TO CRITICAL ACCOUNTING POLICIES AND ESTIMATES UPDATES TO CRITICAL ACCOUNTING POLICIES AND ESTIMATES (Tables)
 12 Months Ended
May 31, 2014
Accounting Policies and Estimates [Abstract]  
Property, Plant and Equipment [Table Text Block]
Property, plant and equipment consist of the following (in thousands):
 
 
May 31,   2014
 
June 1,   2013
Land and improvements
$
1,598

 
$
1,503

Buildings and improvements
18,456

 
18,384

Computer and communications equipment(1)
3,792

 
1,676

Construction in progress(1)
1,377

 
1,305

Machinery and other equipment
5,795

 
4,963

 
$
31,018

 
$
27,831

Accumulated depreciation
(23,795
)
 
(22,758
)
Property, plant, and equipment, net
$
7,223

 
$
5,073

(1)
Relates primarily to IT Infrastructure for our ERP Implementation.
Property Plant And Equipment Estimated Useful Lives Table [Text Block]
Supplemental disclosure information of the estimated useful life of the asset:
Land improvements
10 years
Buildings and improvements
10 - 30 years
Computer and communications equipment
3 - 10 years
Machinery and other equipment
3 - 10 years
Schedule of Accrued Liabilities [Table Text Block]
Accrued liabilities consist of the following (in thousands):
 
May 31, 2014
 
June 1, 2013
Compensation and payroll taxes
$
4,692

 
$
4,138

Income taxes
68

 
1,191

Professional fees
560

 
811

Other accrued expenses
3,900

 
3,426

Accrued Liabilities
$
9,220

 
$
9,566
Schedule of Product Warranty Liability [Table Text Block]
Changes in the warranty reserve during fiscal 2014 and 2013 were as follows (in thousands):
 
Warranty Reserve
Balance at June 2, 2012
$
148

Accruals for products sold
259

Utilization
(219
)
Balance at June 1, 2013
$
188

Accruals for products sold
202

Utilization
(215
)
Balance at May 31, 2014
$
175
Schedule of Share-based Compensation, Stock Options, Activity [Table Text Block]
A summary of stock option activity is as follows (in thousands, except option prices and years):
 
 
Number of
Options
 
Weighted
Average
Exercise
Price
 
Weighted
Average
Remaining
Contractual
Life
 
Aggregate
Intrinsic
Value
Options Outstanding at May 28, 2011
883

 
$
8.51

 
 
 
 
Granted
140

 
12.87

 
 
 
 
Exercised
(121
)
 
6.68

 
 
 
 
Forfeited
(62
)
 
8.91

 
 
 
 
Cancelled
(74
)
 
7.92

 
 
 
 
Options Outstanding at June 2, 2012
766

 
$
9.52

 
 
 
 
Granted
225

 
11.70

 
 
 
 
Exercised
(31
)
 
6.37

 
 
 
 
Forfeited
(14
)
 
10.40

 
 
 
 
Cancelled
(2
)
 
12.43

 
 
 
 
Options Outstanding at June 1, 2013
944

 
$
10.13

 
 
 
 
Granted
224

 
11.15

 
 
 
 
Exercised
(32
)
 
5.84

 
 
 
 
Forfeited
(54
)
 
11.73

 
 
 
 
Cancelled
(17
)
 
11.52

 
 
 
 
Options Outstanding at May 31, 2014
1,065

 
$
10.37

 
6.4
 
$
1,189

Options Vested at May 31, 2014
576

 
$
9.50

 
4.8
 
$
1,040
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]
The per share amounts presented in the consolidated statements of comprehensive income (loss) are based on the following (amounts in thousands, except per share amounts):
 
 
For the Fiscal Year Ended
 
May 31, 2014
 
June 1, 2013
 
June 2, 2012
 
Basic
 
Diluted
 
Basic
 
Diluted
 
Basic
 
Diluted
Numerator for Basic and Diluted EPS:
 
 
 
 
 
 
 
 
 
 
 
Income (loss) from continuing operations
$
(345
)
 
$
(345
)
 
$
482

 
$
482

 
$
7,990

 
$
7,990

Less dividends:
 
 
 
 
 
 
 
 
 
 
 
Common stock
2,853

 
2,853

 
2,971

 
2,971

 
2,787

 
2,787

Class B common stock
488

 
488

 
600

 
600

 
528

 
528

Undistributed earnings (losses)
$
(3,686
)
 
$
(3,686
)
 
$
(3,089
)
 
$
(3,089
)
 
$
4,675

 
$
4,675

Common stock undistributed earnings (losses)
$
(3,151
)
 
$
(3,151
)
 
$
(2,570
)
 
$
(2,575
)
 
$
3,933

 
$
3,939

Class B common stock undistributed earnings (losses)
(535
)
 
(535
)
 
(519
)
 
(514
)
 
742

 
736

Total undistributed earnings (losses)
$
(3,686
)
 
$
(3,686
)
 
$
(3,089
)
 
$
(3,089
)
 
$
4,675

 
$
4,675

Income (loss) from discontinued operations
$
(170
)
 
$
(170
)
 
$
766

 
$
766

 
$
536

 
$
536

Less dividends:
 
 
 
 
 
 
 
 
 
 
 
Common stock
2,853

 
2,853

 
2,971

 
2,971

 
2,787

 
2,787

Class B common stock
488

 
488

 
600

 
600

 
528

 
528

Undistributed earnings (losses)
$
(3,511
)
 
$
(3,511
)
 
$
(2,805
)
 
$
(2,805
)
 
$
(2,779
)
 
$
(2,779
)
Common stock undistributed earnings (losses)
$
(3,001
)
 
$
(3,001
)
 
$
(2,334
)
 
$
(2,338
)
 
$
(2,338
)
 
$
(2,342
)
Class B common stock undistributed earnings (losses)
(510
)
 
(510
)
 
(471
)
 
(467
)
 
(441
)
 
(437
)
Total undistributed earnings (losses)
$
(3,511
)
 
$
(3,511
)
 
$
(2,805
)
 
$
(2,805
)
 
$
(2,779
)
 
$
(2,779
)
Net income (loss)
$
(515
)
 
$
(515
)
 
$
1,248

 
$
1,248

 
$
8,526

 
$
8,526

Less dividends:
 
 
 
 
 
 
 
 
 
 
 
Common stock
2,853

 
2,853

 
2,971

 
2,971

 
2,787

 
2,787

Class B common stock
488

 
488

 
600

 
600

 
528

 
528

Undistributed earnings (losses)
$
(3,856
)
 
$
(3,856
)
 
$
(2,323
)
 
$
(2,323
)
 
$
5,211

 
$
5,211

Common stock undistributed earnings (losses)
$
(3,296
)
 
$
(3,296
)
 
$
(1,933
)
 
$
(1,937
)
 
$
4,384

 
$
4,391

Class B common stock undistributed earnings (losses)
(560
)
 
(560
)
 
(390
)
 
(386
)
 
827

 
820

Total undistributed earnings (losses)
$
(3,856
)
 
$
(3,856
)
 
$
(2,323
)
 
$
(2,323
)
 
$
5,211

 
$
5,211

Denominator for basic and diluted EPS:
 
 
 
 
 
 
 
 
 
 
 
Common stock weighted average shares
11,915

 
11,915

 
12,448

 
12,448

 
14,025

 
14,025

Class B common stock weighted average shares, and shares under if-converted method for diluted EPS
2,250

 
2,250

 
2,790

 
2,790

 
2,941

 
2,941

Effect of dilutive securities
 
 
 
 
 
 
 
 
 
 
 
Dilutive stock options
 
 
—

 
 
 
134

 
 
 
152

Denominator for diluted EPS adjusted for weighted average shares and assumed conversions
 
 
14,165

 
 
 
15,372

 
 
 
17,118

Income (loss) from continuing operations per share:
 
 
 
 
 
 
 
 
 
 
 
Common stock
$
(0.03
)
 
$
(0.03
)
 
$
0.03

 
$
0.03

 
$
0.48

 
$
0.47

Class B common stock
$
(0.02
)
 
$
(0.02
)
 
$
0.03

 
$
0.03

 
$
0.43

 
$
0.43

Income (loss) from discontinued operations per share:
 
 
 
 
 
 
 
 
 
 
 
Common stock
$
(0.01
)
 
$
(0.01
)
 
$
0.05

 
$
0.05

 
$
0.03

 
$
0.03

Class B common stock
$
(0.01
)
 
$
(0.01
)
 
$
0.05

 
$
0.05

 
$
0.03

 
$
0.03

Net income (loss) per share:
 
 
 
 
 
 
 
 
 
 
 
Common stock
$
(0.04
)
 
$
(0.04
)
 
$
0.08

 
$
0.08

 
$
0.51

 
$
0.50

Class B common stock
$
(0.03
)
 
$
(0.03
)
 
$
0.08

 
$
0.08

 
$
0.46

 
$
0.46

 
Note: Common stock options that were anti-dilutive and not included in diluted earnings per common share for fiscal 2014, fiscal 2013, and fiscal 2012 were 489,064; 280,764; and 272,864, respectively.
Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]
The fair value of stock options is estimated using the Black-Scholes option-pricing model with the following weighted average assumptions:
 
 
Fiscal Year Ended
 
May 31,   2014
 
June 1,   2013
 
June 2,   2012
Expected volatility
49.31
%
 
50.79
%
 
53.91
%
Risk-free interest rate
2.03
%
 
1.12
%
 
1.52
%
Expected lives (years)
6.47

 
6.37

 
6.29

Annual cash dividend
$
0.24

 
$
0.24

 
$
0.20
Schedule of Share-based Compensation, Shares Authorized under Stock Option Plans, by Exercise Price Range [Table Text Block]
The following table summarizes information about stock options outstanding at May 31, 2014 (in thousands, except option prices and years):
 
 
Outstanding
 
Vested
Exercise Price Range
Shares
 
Price
 
Life
 
Aggregate Intrinsic
Value
 
Shares
 
Price
 
Life
 
Aggregate Intrinsic
Value
$4.18 to $7.24
224

 
$
5.74

 
4.8
 
$
994

 
191

 
$
5.75

 
4.7
 
$
845

$7.32 to $11.00
135

 
$
8.96

 
2.3
 
$
195

 
135

 
$
8.96

 
2.3
 
$
195

$11.12 to $13.76
706

 
$
12.10

 
7.7
 
$
—

 
250

 
$
12.66

 
6.2
 
$
—

Total
1,065

 
$
10.37

 
6.4
 
$
1,189

 
576

 
$
9.50

 
4.8
 
$
1,040