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Manufacturing Segment Data (Details 1) (USD $) | 3 Months Ended |
--- | --- | ---
Apr. 30, 2013 | Apr. 30, 2012 | Jan. 31, 2013
Net Sales: |  |  |
Net sales | $ 21,736,990 | $ 23,980,711 |
External Sales: |  |  |
Revenue from External Customers | 21,740,000 | 23,980,000 |
Intersegment Sales: |  |  |
Intersegment Revenue | 8,280,000 | 5,490,000 |
Operating Profit (Loss): |  |  |
Operating Profit (Loss) | (236,631) | 24,937 |
Depreciation and Amortization Expense: |  |  |
Depreciation and Amortization Expense | 434,436 | 374,889 |
Interest Expense: |  |  |
Interest Expense | 273,435 | 236,392 |
Income Tax Expense (Benefits): |  |  |
Income Tax Expense (benefits) | 178,693 | (346,402) |
Total Assets (at Balance Sheet Date): |  |  |
Total assets | 83,581,939 | 101,500,000 | 83,318,003
Long-Lived Assets (at Balance Sheet Date) |  |  |
Long-Lived Assets | 13,970,000 | 13,820,000 |
Usa [Member] |  |  |
Net Sales: |  |  |
Net sales | 12,830,000 | 10,590,000 |
External Sales: |  |  |
Revenue from External Customers | 11,860,000 | 9,770,000 |
Intersegment Sales: |  |  |
Intersegment Revenue | 970,000 | 820,000 |
Operating Profit (Loss): |  |  |
Operating Profit (Loss) | 290,000 | (1,470,000) |
Depreciation and Amortization Expense: |  |  |
Depreciation and Amortization Expense | 190,000 | 140,000 |
Interest Expense: |  |  |
Interest Expense | 130,000 | 100,000 |
Income Tax Expense (Benefits): |  |  |
Income Tax Expense (benefits) | 60,000 | (500,000) |
Total Assets (at Balance Sheet Date): |  |  |
Total assets | 24,800,000 | 31,640,000 |
Long-Lived Assets (at Balance Sheet Date) |  |  |
Long-Lived Assets | 3,400,000 | 3,860,000 |
Other foreign [Member] |  |  |
Net Sales: |  |  |
Net sales | 5,860,000 | 5,020,000 |
External Sales: |  |  |
Revenue from External Customers | 5,310,000 | 4,960,000 |
Intersegment Sales: |  |  |
Intersegment Revenue | 550,000 | 60,000 |
Operating Profit (Loss): |  |  |
Operating Profit (Loss) | 180,000 | 280,000 |
Depreciation and Amortization Expense: |  |  |
Depreciation and Amortization Expense | 50,000 | 50,000 |
Interest Expense: |  |  |
Interest Expense | 40,000 | 40,000 |
Income Tax Expense (Benefits): |  |  |
Income Tax Expense (benefits) | 70,000 | 50,000 |
Total Assets (at Balance Sheet Date): |  |  |
Total assets | 14,160,000 | 12,600,000 |
Long-Lived Assets (at Balance Sheet Date) |  |  |
Long-Lived Assets | 2,360,000 | 2,470,000 |
Mexico [Member] |  |  |
Net Sales: |  |  |
Net sales | 620,000 | 510,000 |
External Sales: |  |  |
Revenue from External Customers | 180,000 | 100,000 |
Intersegment Sales: |  |  |
Intersegment Revenue | 440,000 | 410,000 |
Operating Profit (Loss): |  |  |
Operating Profit (Loss) | (100,000) | (50,000) |
Depreciation and Amortization Expense: |  |  |
Depreciation and Amortization Expense | 10,000 | 0 |
Interest Expense: |  |  |
Interest Expense | 10,000 | 10,000 |
Income Tax Expense (Benefits): |  |  |
Income Tax Expense (benefits) | 0 | 10,000 |
Total Assets (at Balance Sheet Date): |  |  |
Total assets | 3,470,000 | 3,460,000 |
Long-Lived Assets (at Balance Sheet Date) |  |  |
Long-Lived Assets | 2,170,000 | 2,220,000 |
China [Member] |  |  |
Net Sales: |  |  |
Net sales | 8,930,000 | 8,160,000 |
External Sales: |  |  |
Revenue from External Customers | 2,610,000 | 3,960,000 |
Intersegment Sales: |  |  |
Intersegment Revenue | 6,320,000 | 4,200,000 |
Operating Profit (Loss): |  |  |
Operating Profit (Loss) | 390,000 | 830,000 |
Depreciation and Amortization Expense: |  |  |
Depreciation and Amortization Expense | 70,000 | 90,000 |
Interest Expense: |  |  |
Interest Expense | 0 | 0 |
Income Tax Expense (Benefits): |  |  |
Income Tax Expense (benefits) | 150,000 | 150,000 |
Total Assets (at Balance Sheet Date): |  |  |
Total assets | 27,660,000 | 24,030,000 |
Long-Lived Assets (at Balance Sheet Date) |  |  |
Long-Lived Assets | 3,420,000 | 2,400,000 |
Brazil [Member] |  |  |
Net Sales: |  |  |
Net sales | 1,780,000 | 5,190,000 |
External Sales: |  |  |
Revenue from External Customers | 1,780,000 | 5,190,000 |
Intersegment Sales: |  |  |
Intersegment Revenue | 0 | 0 |
Operating Profit (Loss): |  |  |
Operating Profit (Loss) | (930,000) | 380,000 |
Depreciation and Amortization Expense: |  |  |
Depreciation and Amortization Expense | 110,000 | 100,000 |
Interest Expense: |  |  |
Interest Expense | 250,000 | 240,000 |
Income Tax Expense (Benefits): |  |  |
Income Tax Expense (benefits) | 0 | (90,000) |
Total Assets (at Balance Sheet Date): |  |  |
Total assets | 12,750,000 | 27,770,000 |
Long-Lived Assets (at Balance Sheet Date) |  |  |
Long-Lived Assets | 2,620,000 | 2,870,000 |
India [Member] |  |  |
Total Assets (at Balance Sheet Date): |  |  |
Total assets | 740,000 | 2,000,000 |
Long-Lived Assets (at Balance Sheet Date) |  |  |
Long-Lived Assets | 0 | 0 |
Intersegment Elimination [Member] |  |  |
Net Sales: |  |  |
Net sales | (8,280,000) | (5,490,000) |
Intersegment Sales: |  |  |
Intersegment Revenue | 8,280,000 | 5,490,000 |
Operating Profit (Loss): |  |  |
Operating Profit (Loss) | (70,000) | 50,000 |
Interest Expense: |  |  |
Interest Expense | (150,000) | (150,000) |
Income Tax Expense (Benefits): |  |  |
Income Tax Expense (benefits) | $ (100,000) | $ 30,000 |

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