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Note 11 (Tables)
6 Months Ended
Mar. 25, 2017
Notes Tables  
Unrealized Gain (Loss) on Investments [Table Text Block]
           
Gross
   
Gross
   
Fair
 
   
Amortized
   
Unrealized
   
Unrealized
   
Market
 
   
Cost
   
Gains
   
Losses
   
Value
 
   
(in thousands)
 
                                 
Corporate Bonds
  $
120,368
    $
306
    $
225
    $
120,449
 
Certificates of Deposit
   
1,920
     
4
     
-
     
1,924
 
Total investment securities
held to maturity
  $
122,288
    $
310
    $
225
    $
122,373
 
           
Gross
   
Gross
   
Fair
 
   
Amortized
   
Unrealized
   
Unrealized
   
Market
 
   
Cost
   
Gains
   
Losses
   
Value
 
   
(in thousands)
 
                                 
Mutual Funds
  $
13,003
    $
-
    $
269
    $
12,734
 
Preferred Stock
   
16,791
     
502
     
67
     
17,226
 
Total investment securities
available for sale
  $
29,794
    $
502
    $
336
    $
29,960
 
 
 
 
 
 
 
Gross
 
 
Gross
 
 
Fair
 
 
 
Amortized
 
 
Unrealized
 
 
Unrealized
 
 
Market
 
 
 
Cost
 
 
Gains
 
 
Losses
 
 
Value
 
 
 
(in thousands)
 
Corporate Bonds
  $
103,311
    $
734
    $
138
    $
103,907
 
Certificates of Deposit
   
960
     
11
     
-
     
971
 
Total investment securities
held to maturity
  $
104,271
    $
745
    $
138
    $
104,878
 
 
 
 
 
 
 
Gross
 
 
Gross
 
 
Fair
 
 
 
Amortized
 
 
Unrealized
 
 
Unrealized
 
 
Market
 
 
 
Cost
 
 
Gains
 
 
Losses
 
 
Value
 
   
(in thousands)
 
                                 
Mutual Funds
  $
13,003
    $
-
    $
520
    $
12,483
 
Preferred Stock
   
16,791
     
273
     
82
     
16,982
 
Total investment securities
available for sale
  $
29,794
    $
273
    $
602
    $
29,465
 
Investments Classified by Contractual Maturity Date [Table Text Block]
 
 
March 25, 2017
 
 
September 24, 2016
 
                                 
 
 
 
 
 
 
Fair
 
 
 
 
 
 
Fair
 
 
 
Amortized
 
 
Market
 
 
Amortized
 
 
Market
 
 
 
Cost
 
 
Value
 
 
Cost
 
 
Value
 
 
 
(in thousands)
 
Due in one year or less
  $
37,176
    $
37,182
    $
13,539
    $
13,552
 
Due after one year through
five years
   
85,112
     
85,191
     
90,732
     
91,326
 
Due after five years through
ten years
   
-
     
-
     
-
     
-
 
Total held to maturity
securities
  $
122,288
    $
122,373
    $
104,271
    $
104,878
 
Less current portion
   
37,176
     
37,182
     
13,539
     
13,552
 
Long term held to maturity
securities
  $
85,112
    $
85,191
    $
90,732
    $
91,326