Condensed Consolidated Income Statements (Unaudited) (USD $)	3 Months Ended	9 Months Ended
Jun. 25, 2011	Jun. 26, 2010	Jun. 25, 2011	Jun. 26, 2010
Condensed Consolidated Income Statements [Abstract]
Net sales	$ 4,022,624	$ 6,350,133	$ 9,864,870	$ 14,690,013
Cost of sales	765,787	1,860,961	1,925,677	4,498,059
Gross profit	3,256,837	4,489,172	7,939,193	10,191,954
Operating expenses:
Selling, general and administrative	767,050	695,868	2,166,206	2,327,286
Product development	879,260	780,848	2,736,361	1,639,126
Total operating expenses	1,646,310	1,476,716	4,902,567	3,966,412
Operating income	1,610,527	3,012,456	3,036,626	6,225,542
Other income:
Interest income	610	1,043	1,947	3,081
Income before provision for income taxes	1,611,137	3,013,499	3,038,573	6,228,623
Provision for income taxes	610,817	590,214	1,024,564	1,536,775
Net income	$ 1,000,320	$ 2,423,285	$ 2,014,009	$ 4,691,848
Net income per common share:
Basic	$ 0.55	$ 1.33	$ 1.10	$ 2.87
Diluted	$ 0.54	$ 1.29	$ 1.07	$ 2.72
Weighted average shares:
Basic	1,826,571	1,820,438	1,826,226	1,633,401
Diluted	1,868,608	1,874,960	1,877,251	1,726,070
Dividends paid per common share:	$ 0.10	$ 0.10	$ 0.30	$ 2.00

Aggregate dividends paid during the period for each share of common stock outstanding.

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