Note 9 - Information on Industry Segments (Details) - USD ($)	3 Months Ended	9 Months Ended
Jul. 02, 2016	Jun. 27, 2015	Jul. 02, 2016	Jun. 27, 2015
Medical [Member] \| Operating Segments [Member]
Net sales	$ 11,529,818	$ 11,663,716	$ 33,894,632	$ 35,602,295
Operating profit	1,404,014	1,404,066	4,135,116	4,404,386
Custom Products [Member] \| Operating Segments [Member]
Net sales	3,817,559	4,149,758	17,757,556	10,965,471
Operating profit	284,745	89,762	643,965	(255,893)
Operating Segments [Member]
Net sales	15,347,377	15,813,474	51,652,188	46,567,766
Operating profit	1,688,759	1,493,828	4,779,081	4,148,493
Corporate, Non-Segment [Member]
Corporate expense	(202,579)	(175,626)	(576,256)	(561,430)
Operating profit	1,486,180	1,318,202	4,202,825	3,587,063
Corporate expense	4,167,615	4,122,369	12,125,107	12,284,357
Other income (expense)	(66,961)	64,333	(12,105)	302,235
Income before income taxes	$ 1,419,219	$ 1,382,535	$ 4,190,720	$ 3,889,298

Amount of income (loss) from continuing operations before deduction of income tax expense (benefit) and income (loss) attributable to noncontrolling interest, and addition of income (loss) from equity method investments.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08.(h)(1)(i))
-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690

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The aggregate amount of income or expense from ancillary business-related activities (that is to say, excluding major activities considered part of the normal operations of the business).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 225
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.7)
-URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688

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Generally recurring costs associated with normal operations except for the portion of these expenses which can be clearly related to production and included in cost of sales or services. Includes selling, general and administrative expense.

+ References

No definition available.

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+ References

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Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 225
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.1)
-URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688

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