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Share-based compensation | 9 Months Ended
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Sep. 30, 2014
Disclosure of Compensation Related Costs, Share-based Payments [Abstract] |
Share-based compensation | 12. Share-based compensation All share-based compensation costs are measured at the grant date, based on the estimated fair value of the award, and are recognized as expense in the condensed consolidated statements of operations over the requisite service period. The following table shows the detail of share-based compensation by line item in the condensed consolidated statements of operations:
|  | Three Months Ended September 30, |  |  | Nine Months Ended September 30, |
(U.S. Dollars, in thousands) |  | 2014 |  |  | 2013 |  |  | 2014 |  |  | 2013 |
Cost of sales |  | $ | 40 |  |  | $ | 27 |  |  | $ | 98 |  |  | $ | (249 | )
Sales and marketing |  |  | 537 |  |  |  | 469 |  |  |  | 1,410 |  |  |  | 1,375 |
General and administrative |  |  | 1,069 |  |  |  | 726 |  |  |  | 2,368 |  |  |  | 3,431 |
Research and development |  |  | 84 |  |  |  | 55 |  |  |  | 227 |  |  |  | 157 |
Total |  | $ | 1,730 |  |  | $ | 1,277 |  |  | $ | 4,103 |  |  | $ | 4,714 |
On June 30, 2014, the Company granted restricted share awards to executive employees, which vesting is based on achieving earnings targets in two consecutive rolling four quarter periods. In March 2013, the Company granted options to its newly-appointed Chief Executive Officer, which vesting is based on achieving certain market prices for the Company’s common stock. During the three and nine months ended September 30, 2014, there were 69,572 and 501,862 shares, respectively, of common stock issued related to stock purchase plan issuances, stock option exercises and the vesting of restricted stock awards. During the three and nine months ended September 30, 2013, there were 56,281 and 199,725 shares, respectively, of common stock issued related to stock purchase plan issuances, stock option exercises and the vesting of restricted stock awards.

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- Definition The entire disclosure for compensation-related costs for equity-based compensation, which may include disclosure of policies, compensation plan details, allocation of equity compensation, incentive distributions, equity-based arrangements to obtain goods and services, deferred compensation arrangements, employee stock ownership plan details and employee stock purchase plan details. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5047-113901 Reference 2: 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 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 50 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6406099&loc=d3e25284-112666 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 40 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6418621&loc=d3e17540-113929 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5444-113901 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 14 + Details
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