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Note 2 - Inventory (Tables) | 9 Months Ended
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Sep. 30, 2013
Inventory Disclosure [Abstract] |
Schedule of Inventory, Current [Table Text Block] |
|  | 2013 |  |  | 2012 |
Furnace parts and supplies |  | $ | 1,011,408 |  |  | $ | 986,278 |
Raw materials |  |  | 710,226 |  |  |  | 705,025 |
Work in process |  |  | 2,022,679 |  |  |  | 1,502,144 |
Finished goods |  |  | 1,290,462 |  |  |  | 990,935 |
Reserve for obsolescence |  |  | (216,079 | ) |  |  | (72,567 | )
Net Inventory |  | $ | 4,818,696 |  |  | $ | 4,111,815 |

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- Definition Tabular disclosure of the carrying amount as of the balance sheet date of merchandise, goods, commodities, or supplies held for future sale or to be used in manufacturing, servicing or production process. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 2 -Paragraph 6 -Subparagraph a,b,c -Article 5 + Details
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