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STOCK OPTIONS (Tables) | 12 Months Ended
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Dec. 31, 2016
Disclosure of Compensation Related Costs, Share-based Payments [Abstract] |
Summary of stock options and stock awards | The status of our stock options and stock awards are summarized as follows:
| Number of options |  | Weighted average exercise price
Outstanding at December 31, 2014 | 2,864,189 |  |  | $ | 3.69 |
Granted | 830,922 |  |  | 2.21 |
Exercised | (97,500 | ) |  | 2.25 |
Canceled and forfeited | (466,164 | ) |  | 3.57 |
Outstanding at December 31, 2015 | 3,131,447 |  |  | $ | 3.38 |
Granted | 810,762 |  |  | 1.87 |
Exercised | (36,250 | ) |  | 3.62 |
Canceled and forfeited | (153,750 | ) |  | 3.69 |
Outstanding at December 31, 2016 | 3,752,209 |  |  | $ | 3.04 |
Exercisable at December 31, 2016 | 2,006,702 |  |  | $ | 3.79 |
Number of weighted average grant-date fair values of options |
| Number of options |  | Weighted average grant date fair value
Non-vested at December 31, 2015 | 1,707,411 |  |  | $ | 2.63 |
Granted | 810,762 |  |  | 0.89 |
Vested | (618,917 | ) |  | 1.08 |
Forfeited | (153,750 | ) |  | 1.75 |
Non-vested at December 31, 2016 | 1,745,506 |  |  | 1.25 |
Schedule of option fair value assumptions |
| 2016 Grants |  | 2015 Grants |  | 2014 Grants
Option value | $0.80 | - | $0.91 |  | $0.90 | - | $1.84 |  | $3.50 | - | $4.30
Risk-free rate | 1.5% | - | 1.8% |  | 0.2% | - | 1.6% |  | 0.6%
Expected dividend yield | —% |  | —% |  | —%
Expected volatility | 49.5% | - | 50.3% |  | 53.0% | - | 54.0% |  | 53.0% | - | 54.0%
Expected term (in years) | 6 |  | 4 | - | 10 |  | 4 | - | 10
Allocation of stock based compensation | Allocation of stock based compensation expense was as follows:
| Year Ended December 31,
(In thousands) | 2016 |  | 2015 |  | 2014
Cost of sales | $ | 2 |  |  | $ | 3 |  |  | $ | 8 |
Research and development | 27 |  |  | 39 |  |  | 51 |
Salaries and related costs | 780 |  |  | 526 |  |  | 329 |
Total | $ | 809 |  |  | $ | 568 |  |  | $ | 388 |

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- Definition Tabular disclosure of the allocation of equity-based compensation costs to a given line item on the balance sheet and income statement for the period. This may include the reporting line for the costs and the amount capitalized and expensed. + 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 (h)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5047-113901 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB Topic 14.F) -URI http://asc.fasb.org/extlink&oid=27013229&loc=d3e301413-122809 + Details
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- Definition Tabular disclosure of the significant assumptions used during the year to estimate the fair value of stock options, including, but not limited to: (a) expected term of share options and similar instruments, (b) expected volatility of the entity's shares, (c) expected dividends, (d) risk-free rate(s), and (e) discount for post-vesting restrictions. + 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 (f)(2) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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