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Note 9 - Gain on Life Insurance Policies (Details Textual)
1 Months Ended 3 Months Ended 6 Months Ended
Feb. 28, 2017
USD ($)
Apr. 01, 2017
USD ($)
Apr. 02, 2016
USD ($)
Apr. 01, 2017
USD ($)
Apr. 02, 2016
USD ($)
Jan. 31, 2017
USD ($)
Oct. 01, 2016
USD ($)
Proceeds from Life Insurance Policy       $ 3,353,851    
Cash Surrender Value of Life Insurance   $ 149,206   149,206     $ 2,697,465
Gain (Loss) on Life Insurance Policies   731,623 731,623    
Mr. Spann [Member]              
Proceeds from Life Insurance Policy $ 3,400,000            
Gain (Loss) on Life Insurance Policies       $ 732,000      
Gain (Loss) on Life Insurance Policies, Per Diluted Share after Tax       0.26      
Mr. Spann [Member] | Other Assets [Member]              
Cash Surrender Value of Life Insurance           $ 2,600,000  
Founder and Former Chief Executive Officer and His Former Wife [Member]              
Deferred Compensation Arrangement, Annual Payment       $ 113,561      
Ms. Spann [Member] | Accrued and Sundry Liabilties and Deferred Compensation [Member]              
Deferred Compensation Arrangement with Individual, Recorded Liability   $ 357,000   $ 357,000