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SHAREHOLDERS' EQUITY (Tables) | 12 Months Ended
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Dec. 31, 2012
SHAREHOLDERS' EQUITY |
Schedule of reconciliation of net income (loss) and weighted average common shares outstanding for purposes of calculating basic and diluted net income (loss) per share |
|  | December 31, |
|  | 2012 |  | 2011 |  | 2010 |
Numerator: |  |  |  |  |  |  |
Net income (loss) |  | $ | 15,671,879 |  | $ | 10,833,215 |  | $ | (1,222,682 | )
Denominator: |  |  |  |  |  |  |
Basic - weighted average common shares outstanding |  | 20,489,179 |  | 20,205,524 |  | 20,162,944 |
Effect of Dilutive Securities: |  |  |  |  |  |  |
Stock options |  | 366,417 |  | 317,063 |  | — |
|  | 20,855,596 |  | 20,522,587 |  | 20,162,944 |
Basic net income (loss) per share |  | $ | 0.76 |  | $ | 0.54 |  | $ | (0.06 | )
Diluted net income (loss) per share |  | $ | 0.75 |  | $ | 0.53 |  | $ | (0.06 | )
Summary of activity under the Plans |
|  |  |  | Weighted |
|  | Shares under |  | Average |
|  | Option |  | exercise price |
Balance at December 31, 2009 |  | 875,039 |  | $ | 3.69 |
Granted |  | — |  | $ | — |
Exercised |  | — |  | $ | — |
Canceled |  | (87,366 | ) | $ | 4.27 |
Balance at December 31, 2010 |  | 787,673 |  | $ | 3.63 |
Granted |  | 104,145 |  | $ | 6.07 |
Exercised |  | (59,334 | ) | $ | 3.06 |
Canceled |  | (21,000 | ) | $ | 4.10 |
Balance at December 31, 2011 |  | 811,484 |  | $ | 3.97 |
Granted |  | 138,120 |  | $ | 7.13 |
Exercised |  | (192,949 | ) | $ | 4.20 |
Canceled |  | (51,496 | ) | $ | 8.94 |
Balance at December 31, 2012 |  | 705,159 |  | $ | 4.16 |
Schedule of information that applies to options outstanding and exercisable |
|  |  |  |  |  | Weighted |  |  |
|  |  |  |  |  | average |  |  |
|  |  |  |  |  | remaining |  | Weighted |
|  | Range of |  | Number |  | contractual |  | average |
|  | Exercise prices |  | outstanding |  | life (in years) |  | exercise price |
Outstanding options |  | $2.80 – $9.87 |  | 705,159 |  | 2.06 |  | $ | 4.16 |
Exercisable options |  | $2.80 – $9.87 |  | 653,034 |  | 1.86 |  | $ | 4.02 |

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- Definition Tabular disclosure of option exercise prices, by grouped ranges, including the upper and lower limits of the price range, the number of shares under option, weighted average exercise price and remaining contractual option terms. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 123R -Paragraph 64 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 123R -Paragraph A240 -Subparagraph f -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
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- Definition Tabular disclosure of the number and weighted-average exercise prices (or conversion ratios) for share options (or share units) that were outstanding at the beginning and end of the year, vested and expected to vest, exercisable or convertible at the end of the year, and the number of share options or share units that were granted, exercised or converted, forfeited, and expired during the year. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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