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1. NATURE OF BUSINESS AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Tables) | 6 Months Ended
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Jun. 30, 2014
Accounting Policies [Abstract] |
Schedule of property plant and equipment useful life |
|  | Useful life (in years)
Buildings (including salt pans) |  | 8 - 20
Plant and machinery (including protective shells, transmission channels and ducts) |  | 5 - 8
Motor vehicles |  | 5
Furniture, fixtures and equipment |  | 8
Schedule of fair value measurements |
|  | Three-Month Period Ended June 30, |  |  | Six-Month Period Ended June 30,
|  | 2014 |  |  | 2013 |  |  |  | 2014 |  |  |  | 2013 |  |
Numerator |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net income |  | $ | 5,664,812 |  |  | $ | 5,355,899 |  |  | $ | 9,951,150 |  |  | $ | 7,238,864 |  |
Denominator |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Basic: Weighted-average common shares outstanding during the period |  |  | 38,726,415 |  |  |  | 38,367,471 |  |  |  | 38,662,773 |  |  |  | 38,367,471 |  |
Add: Dilutive effect of stock options |  |  | 614,813 |  |  |  | 223,656 |  |  |  | 647,173 |  |  |  | 178,571 |  |
Diluted |  |  | 39,341,228 |  |  |  | 38,591,127 |  |  |  | 39,309,946 |  |  |  | 38,546,042 |  |
Net income per share |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Basic |  | $ | 0.15 |  |  | $ | 0.14 |  |  | $ | 0.26 |  |  | $ | 0.19 |  |
Diluted |  | $ | 0.14 |  |  | $ | 0.14 |  |  | $ | 0.25 |  |  | $ | 0.19 |  |

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- Definition Tabular disclosure of assets and liabilities, including [financial] instruments measured at fair value that are classified in stockholders' equity, if any, that are measured at fair value on a recurring basis. The disclosures contemplated herein include the fair value measurements at the reporting date by the level within the fair value hierarchy in which the fair value measurements in their entirety fall, segregating fair value measurements using quoted prices in active markets for identical assets (Level 1), significant other observable inputs (Level 2), and significant unobservable inputs (Level 3). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=36462937&loc=d3e19190-110258 + Details
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