Note 2 - Summary of Significant Accounting Policies and Significant Judgments and Estimates (Tables)

9 Months Ended

Jun. 29, 2019

Notes Tables

Fair Value, Assets Measured on Recurring Basis [Table Text Block]

	Total		Quoted Prices in Active Markets for Identical Assets (Level 1)
June 29, 2019
Cash Equivalents
Mutual funds:
Money market funds	$	432,363	$	432,363
Total mutual funds		432,363		432,363
Total assets	$	432,363	$	432,363
September 29, 2018
Cash Equivalents
Mutual funds:
Money market funds	$	1,020,039	$	1,020,039
Total mutual funds		1,020,039		1,020,039
Total assets	$	1,020,039	$	1,020,039

Share-based Payment Arrangement, Expensed and Capitalized, Amount [Table Text Block]

	June 29, 2019				June 30, 2018
	3 months		9 months		3 months		9 months
Selling, general and administrative expenses	$	24,461		39,644	$	7,596		17,352
Product development expenses		1,035		3,436		356		1,064
Total share-based compensation expense before taxes	$	25,496	$	43,080	$	7,952	$	18,416

Share-based Payment Arrangement, Option, Activity [Table Text Block]

	Options Outstanding
	Number of Shares									Weighted Average		Weighted Average Contractual Life
	Unvested			Vested			Total			Exercise Price		(in years)
Outstanding, September 29, 2018		44,700			182,437			227,137		$	8.50		3.76
Grants		-			-			-
Vested		-			-			-
Cancellations/forfeitures		-			(3,500	)		(3,500	)		4.95
Outstanding, December 29, 2018		44,700			178,937			223,637		$	8.50		3.51
Grants		-			-			-
Vested		(6,300	)		6,300			-
Cancellations/forfeitures		-			(8,500	)		(8,500	)		4.92
Outstanding, March 30, 2019		38,400			176,737			215,137		$	8.70		3.45
Grants		34,500			6,000			40,500			3.58
Vested		(2,400	)		2,400			-
Cancellations/forfeitures		-			(24,300	)		(24,300	)		6.89
Outstanding, June 29, 2019		70,500			160,837			231,337		$	8.00		4.24

Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding and Exercisable [Table Text Block]

Range of Exercise Prices			Number of Shares		Weighted-Average Remaining Contractual Life (years)		Weighted Average Exercise Price		Exercisable Number of Shares		Exercisable Weighted- Average Exercise Price
$2.01	-	$3.00		20,300		7.14	$	2.69		9,800	$	2.73
$3.01	-	$4.00		46,500		9.78		3.61		7,200		3.61
$4.01	-	$5.00		16,600		4.98		4.34		14,100		4.36
$5.01	-	$10.00		37,000		4.45		7.75		28,600		7.89
$10.01	-	$15.00		110,937		1.21		11.44		110,937		11.44
				231,337		4.24	$	8.00		170,637	$	9.43