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Note 7 - Components of Working Capital Accounts | 12 Months Ended
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Dec. 31, 2014
Disclosure Text Block Supplement [Abstract] |
Supplemental Balance Sheet Disclosures [Text Block] |
7. | Components of working capital accounts
|  | December 31, 2014 |  |  | December 31, 2013 |
Inventories |  |  |  |  |  |
Work-in-progress |  | $ | 10,525 |  |  | $ | 8,748 |
Finished goods |  |  | 4,189 |  |  |  | 2,973 |
Supplies and other |  |  | 4,236 |  |  |  | 4,083 |
|  | $ | 18,950 |  |  | $ | 15,804 |
Accrued liabilities |  |  |  |  |  |  |  |
Accrued payroll, commission and benefits |  | $ | 311,781 |  |  | $ | 278,641 |
Accrued interest |  |  | 3,112 |  |  |  | 3,584 |
Customer advances |  |  | 5,176 |  |  |  | 5,505 |
Other |  |  | 114,750 |  |  |  | 104,647 |
|  | $ | 434,819 |  |  | $ | 392,377 |

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