Note 3 - Fair Value of Financial Instruments - Fair Value Measurement of Assets (Details) - USD ($)	Apr. 01, 2017	Oct. 01, 2016
Cash value of life insurance policy	$ 149,206	$ 2,697,465
Fair Value, Inputs, Level 1 [Member]
Cash value of life insurance policy
Fair Value, Inputs, Level 2 [Member]
Cash value of life insurance policy	149,206	2,697,465
Fair Value, Inputs, Level 3 [Member]
Cash value of life insurance policy