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Condensed Consolidated Balance Sheets (Unaudited) (Parentheticals) (USD $)
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Jun. 30, 2012
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Dec. 31, 2011
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|---|---|---|
| Statement Of Financial Position [Abstract] | ||
| Accounts receivable allowances (in dollars) | $ 0 | $ 0 |
| Accumulated depreciation on property, plant and equipment (in dollars) | $ 26,429,781 | $ 25,616,113 |
| Common stock, par value (in dollars per share ) | $ 0.01 | $ 0.01 |
| Common stock shares, authorized | 245,000,000 | 245,000,000 |
| Common stock shares, Issued | 38,050,862 | 22,924,411 |
| Treasury shares | 165,906 | 165,906 |