Consolidated Statements of Comprehensive Income (Unaudited) (USD $)	3 Months Ended				6 Months Ended
	Mar. 28, 2015		Mar. 29, 2014		Mar. 28, 2015		Mar. 29, 2014
Net sales	$ 15,033,618		$ 14,708,529		$ 30,754,293		$ 29,561,806
Cost of goods sold	10,051,750		9,455,352		20,323,444		19,520,834
Gross profit	4,981,868		5,253,177		10,430,849		10,040,972
Selling and marketing expenses	2,612,904		2,603,881		5,373,139		5,090,929
Research and development expenses	316,250		274,137		595,928		562,907
General and administrative expenses	1,127,917		1,034,368		2,192,920		2,041,333
Operating expenses	4,057,071		3,912,386		8,161,987		7,695,169
Operating income	924,797		1,340,791		2,268,862		2,345,803
Non-operating income (expense):
Interest expense	(3,125)		(3,125)		(6,285)		(6,319)
Other	174,766		19,015		244,186		28,327
Net non-operating income (expense)	171,641		15,890		237,901		22,008
Income before income taxes	1,096,438		1,356,681		2,506,763		2,367,811
Provision for income taxes	323,000		466,000		763,000		811,000
Net income	773,438		890,681		1,743,763		1,556,811
Other comprehensive income (loss), after tax:
Foreign currency translation loss	(621,477)		(318,992)		(1,127,611)		(708,155)
Comprehensive income	$ 151,961		$ 571,689		$ 616,152		$ 848,656
Net income per share of common stock:
Basic (in dollars per share)	$ 0.26		$ 0.30		$ 0.59		$ 0.53
Diluted (in dollars per share)	$ 0.26		$ 0.30		$ 0.58		$ 0.52
Dividends per common share (1) (in dollars per share)	$ 0.15	[1]	$ 0.14	[1]	$ 1.30	[1]	$ 0.28	[1]
Denominator for diluted earnings per share:
Basic (in shares)	2,979,097		2,945,416		2,969,895		2,936,416
Diluted (in shares)	3,005,951		2,991,406		3,000,877		2,984,324

[1] Dividends per share for the six months ended March 28, 2015 include a special dividend of $1.00 per share declared on November 12, 2014 and paid on January 7, 2015 to shareholders of record on December 17, 2014.