Note 13 - Operations and Industry Segments - Information On Industry Segments (Details) - USD ($) |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
Apr. 01, 2017 |
Apr. 02, 2016 |
Apr. 01, 2017 |
Apr. 02, 2016 |
|
| Operating profit | $ 1,403,065 | $ 1,160,190 | $ 2,794,305 | $ 2,716,645 |
| Corporate expense | 4,457,762 | 4,030,646 | 8,633,025 | 7,957,492 |
| Other income (expense) | 737,410 | (53,441) | 771,062 | 54,856 |
| Income before income taxes | 2,140,475 | 1,106,749 | 3,565,367 | 2,771,501 |
| Operating Segments [Member] | ||||
| Net sales | 15,225,876 | 14,852,629 | 30,448,505 | 36,304,811 |
| Operating profit | 1,704,693 | 1,383,671 | 3,297,957 | 3,090,322 |
| Corporate, Non-Segment [Member] | ||||
| Corporate expense | (301,628) | (223,481) | (503,652) | (373,677) |
| Medical [Member] | Operating Segments [Member] | ||||
| Net sales | 12,927,831 | 10,972,017 | 25,445,982 | 22,364,814 |
| Operating profit | 1,781,601 | 1,229,251 | 3,388,046 | 2,731,102 |
| Custom Products [Member] | Operating Segments [Member] | ||||
| Net sales | 2,298,045 | 3,880,612 | 5,002,523 | 13,939,997 |
| Operating profit | $ (76,908) | $ 154,420 | $ (90,089) | $ 359,220 |