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STOCK OPTION EXERCISES (Details) - USD ($) | 12 Months Ended
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Dec. 31, 2015 | Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2009 | Dec. 31, 2008
STOCK OPTION EXERCISES |  |  |  |  |
Aggregate consideration from issue of common stock | $ 283,933 | $ 398,328 | $ 536,925 |  |
Non-qualified stock option |  |  |  |  |
STOCK OPTION EXERCISES |  |  |  |  |
Number of common stock issued on exercise of stock options (in shares) | 272,477 | 418,195 | 584,450 |  |
Aggregate consideration from issue of common stock | $ 283,933 | $ 398,328 | $ 536,925 |  |
Granted (in dollars per share) |  |  |  | $ 1.30 | $ 0.81
Employees | Non-qualified stock option |  |  |  |  |
STOCK OPTION EXERCISES |  |  |  |  |
Number of common stock issued on exercise of stock options (in shares) | 259,977 | 418,195 | 584,450 |  |
Granted (in dollars per share) |  |  | $ 1.46 |  |

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- Definition Weighted average per share amount at which grantees can acquire shares of common stock by exercise of options. + References No definition available. + Details
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- Definition Number of share options (or share units) exercised during the current period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21463-112644 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(iv)(2) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.28,29) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 29, 30 -Article 5 + Details
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