Note 19 - Operations and Industry Segments and Geographic Areas (Detail) - Information on Industry Segments (USD $)
 12 Months Ended
Sep. 29, 2012
Oct. 01, 2011
Oct. 02, 2010
Net Sales $ 76,146,423 $ 52,578,372 $ 52,355,662
Operating Profit 8,147,375 6,185,454 7,370,706
Corporate expense (637,310) (710,281) (636,685)
Other (expense) income (44,092) 18,893 52,194
Income from continuing operations before income taxes 7,465,973 5,494,066 6,786,215
Identifiable Assets 37,647,766 30,596,000 27,212,188
Depreciation and Amortization Expenses 1,209,326 809,696 813,291
Capital Expenditures 684,327 191,209 270,576
Medical [Member]
      
Net Sales 46,452,008 34,741,164 35,572,689
Operating Profit 5,349,910 4,666,538 5,742,600
Identifiable Assets 23,814,524 15,209,839 14,439,795
Depreciation and Amortization Expenses 872,909 529,050 533,184
Capital Expenditures 477,658 159,527 252,985
Custom Products [Member]
      
Net Sales 29,694,415 17,837,208 16,782,973
Operating Profit 2,797,465 1,518,916 1,628,106
Identifiable Assets 9,030,782 7,097,568 6,016,135
Depreciation and Amortization Expenses 336,114 280,381 279,636
Capital Expenditures 206,669 31,682 17,591
Corporate [Member]
      
Identifiable Assets 4,802,460 8,288,593 6,756,258
Depreciation and Amortization Expenses 303 265 471
United States [Member]
      
Net Sales 67,981,932 50,721,211 50,632,653
Canada [Member]
      
Net Sales 7,920,424 1,275,494 1,535,861
Other Areas [Member]
      
Net Sales $ 244,067 $ 581,667 $ 187,148