Note 2 - Restatements - Adjustment of Financial Statements (Details) - USD ($)	3 Months Ended
	Dec. 30, 2017	Dec. 31, 2016	Sep. 30, 2017
Deferred revenue	$ 764,185		$ 484,121
Accumulated deficit	(1,638,787)		(1,306,757)
Total net revenue	836,529	$ 631,621
Gross profit	291,671	443,024
Operating loss	(333,812)	(696,995)
Net loss	$ (332,030)	$ (694,588)
Basic (in dollars per share)	$ (0.18)	$ (0.38)
Diluted (in dollars per share)	$ (0.18)	$ (0.38)
Changes in current assets and current liabilities – Deferred revenue	$ 280,064
Previously Reported [Member]
Deferred revenue
Accumulated deficit	(874,602)		(822,636)
Total net revenue	1,116,593
Gross profit	571,735
Operating loss	(53,748)
Net loss	$ (51,966)
Basic (in dollars per share)	$ (0.03)
Diluted (in dollars per share)	$ (0.03)
Changes in current assets and current liabilities – Deferred revenue
Restatement Adjustment [Member]
Deferred revenue	764,185		484,121
Accumulated deficit	(764,185)		$ (484,121)
Total net revenue	(280,064)
Gross profit	(280,064)
Operating loss	(280,064)
Net loss	$ (280,064)
Basic (in dollars per share)	$ (0.15)
Diluted (in dollars per share)	$ (0.15)
Changes in current assets and current liabilities – Deferred revenue	$ 280,064