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INCOME (LOSS) PER SHARE (Details) - USD ($) | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2015 | Jun. 30, 2014 | Jun. 30, 2015 | Jun. 30, 2014
Income (loss) for the period |  | $ (1,666,806) | $ 5,261,928 | $ (3,201,337) | $ 4,525,009
Income attributable to participating securities (Preferred Stock) |  |  | (1,003,097) |  | (842,475)
Income (loss) for the period attributable to common stockholders |  | $ (1,795,886) | $ 4,166,242 | $ (3,434,168) | $ 3,497,271
Number of shares: |  |  |  |  |
Common shares used in computing basic income (loss) per share |  | 5,441,253 | 5,304,072 | 5,382,682 | 5,303,529
Common shares used in computing diluted income (loss) per share | [1] | 5,441,253 | 5,336,019 | 5,382,682 | 5,361,570
Total weighted average number of common shares related to outstanding convertible Preferred Stock, options and warrants excluded from the calculations of diluted income (loss) per share | [2] | 9,537,309 | 3,369,743 | 9,367,247 | 3,324,535
Series A Preferred Stock [Member] |  |  |  |  |
Dividend on Preferred Stock |  | $ (26,522) | $ (92,589) | $ (47,036) | $ (185,263)
Series B Preferred Stock [Member] |  |  |  |  |
Dividend on Preferred Stock |  | $ (102,558) |  | $ (185,795) |
[1] | In applying the treasury method, the average market price of Common Stock was based on management's estimate (see Note 2D, above).
[2] | The Company excludes from the calculation of diluted income (loss) per share, shares that will be issued upon the exercise of options and warrants with exercise prices, that are greater than the estimated average market value of the Company's Common Stock and shares issuable upon conversion of Preferred Stock because their effect would be anti-dilutive.

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- Definition Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Antidilution -URI http://asc.fasb.org/extlink&oid=6505113 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Diluted Earnings Per Share -URI http://asc.fasb.org/extlink&oid=6510752 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Contingent Stock Agreement -URI http://asc.fasb.org/extlink&oid=6508534 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 + Details
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