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Stock Ownership Plans (Tables)
12 Months Ended
Sep. 27, 2015
Stock Options [Member]  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Schedule of Share-based Compensation, Stock Options, Activity [Table Text Block]
A summary of stock option activity is as follows:
(Thousands of Shares)
2015

 
2014

 
2013

 
 
 
 
 
 
Under option, beginning of year
2,333

 
2,769

 
3,102

Granted

 
15

 
51

Exercised
(289
)
 
(342
)
 
(62
)
Canceled
(173
)
 
(109
)
 
(322
)
Under option, end of year
1,871

 
2,333

 
2,769

Exercisable, end of year
1,840

 
1,786

 
1,791

Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value [Table Text Block]
Weighted average prices of stock options are as follows:
(Dollars)
2015

 
2014

 
2013

 
 
 
 
 
 
Granted

 
2.99

 
1.20

Exercised
1.27

 
2.01

 
1.65

Cancelled
5.02

 
10.98

 
5.18

Under option, end of year
2.71

 
2.70

 
2.94

Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]
The following assumptions were used to estimate the fair value of 2014 and 2013 option awards:
 
 
 
2014

 
2013

 
 
 
 
 
 
Volatility (Percent)
 
 
91

 
121

Risk-free interest rate (Percent)
 
 
1.24

 
0.68

Expected term (Years)
 
 
4.5

 
4.7

Estimated fair value (Dollars)
 
 
2.02

 
0.98

Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding and Exercisable [Table Text Block]
A summary of stock options outstanding at September 27, 2015 is as follows:
(Dollars)
Options Outstanding
 
 
Options Exercisable
 
Range of
Exercise
Prices
Number
Outstanding (Thousands)

Weighted Average
Remaining Contractual
Life (Years)
 
Weighted
Average
Exercise Price

 
Number
Exercisable  (Thousands)

 
Weighted
Average
Exercise Price

 
 
 
 
 
 
 
 
 
1 - 5 
1,813

5.7
 
1.79

 
1,782

 
1.79

25 - 50
58

0.9
 
31.64

 
58

 
31.64

 
1,871

5.5
 
2.71

 
1,840

 
2.72

Restricted Stock [Member]  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Schedule of Share-based Compensation, Stock Options, Activity [Table Text Block]
A summary of restricted Common Stock activity follows:
(Thousands of Shares)
2015

 
2014

 
2013

 
 
 
 
 
 
Outstanding, beginning of year
1,291

 
500

 
500

Granted
786

 
817

 

Vested
(500
)
 

 

Forfeited
(31
)
 
(26
)
 

Outstanding, end of year
1,546

 
1,291

 
500

Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value [Table Text Block]
Weighted average grant date fair values of restricted Common Stock are as follows:
(Dollars)
2015

 
2014

 
2013

 
 
 
 
 
 
Outstanding, beginning of year
2.72

 
1.31

 
1.31

Granted
3.62

 
3.61

 

Vested
1.31

 

 

Forfeited
3.62

 
3.61

 

Outstanding, end of year
3.62

 
2.72

 
1.31