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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES Amounts used in computing EPS (Tables) | 12 Months Ended
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Dec. 31, 2012
Accounting Policies [Abstract] |
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] | The following data represents the amounts used in computing EPS and the effect on net income and the weighted average number of shares of dilutive potential common stock:
|  | Year ended December 31,
|  | 2010 |  | 2011 |  | 2012
Net income available to common stockholders |  | $ | (25,088 | ) |  | $ | 35,409 |  |  | $ | (16,711 | )
Weighted average shares outstanding: |  |  |  |  |  |
-Basic |  | 14,910 |  |  | 17,462 |  |  | 17,891 |
Add: Warrants |  | — |  |  | 26 |  |  | — |
Add: Stock options |  | — |  |  | 255 |  |  | — |
-Diluted |  | 14,910 |  |  | 17,743 |  |  | 17,891 |
Basic net income per share |  | $ | (1.68 | ) |  | $ | 2.03 |  |  | $ | (0.93 | )
Diluted net income per share |  | $ | (1.68 | ) |  | $ | 1.99 |  |  | $ | (0.93 | )

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- Definition Tabular disclosure of an entity's basic and diluted earnings per share calculations. + References No definition available. + Details
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