Note 9 - Operations and Industry Segments (Details) - Information on Industry Segments (USD $)	3 Months Ended		9 Months Ended
	Jun. 28, 2014	Jun. 29, 2013	Jun. 28, 2014	Jun. 29, 2013
Segment Reporting Information [Line Items]
Net sales	$ 13,250,985	$ 18,621,212	$ 42,812,791	$ 56,904,627
Operating profit	694,120	1,996,109	3,347,276	6,203,783
Other income (expense)	13,049	(2,337)	35,058	(39,994)
Income before income taxes	576,053	1,811,884	2,943,864	5,664,330
Medical [Member]
Segment Reporting Information [Line Items]
Net sales	10,293,467	13,427,180	32,062,039	36,319,007
Operating profit	756,035	1,816,406	2,927,520	4,129,152
Custom Products [Member]
Segment Reporting Information [Line Items]
Net sales	2,957,518	5,194,032	10,750,752	20,585,620
Operating profit	(61,915)	179,703	419,756	2,074,631
Corporate Segment [Member]
Segment Reporting Information [Line Items]
Corporate expense	$ (131,116)	$ (181,888)	$ (438,470)	$ (499,459)