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Net Income Per Share: | 6 Months Ended
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Jun. 30, 2017
Earnings Per Share [Abstract] |
Net Income Per Share [Text Block] | Net Income Per Share Basic earnings per share is computed by dividing net income by the weighted-average number of common shares outstanding during the period. Diluted earnings per share is computed by dividing net income by the weighted-average number of common shares outstanding during the period plus dilutive securities. Dilutive securities include outstanding common stock options and unvested restricted stock units, less the number of shares that could have been purchased with the proceeds from the exercise of the options, using the treasury stock method. Options that are anti-dilutive, where their exercise price exceeds the average market price of the common stock are not included in the treasury stock method calculation. There were no and 61 anti-dilutive securities for the three and six months ended June 30, 2017, respectively. There were no and 4,300 anti-dilutive securities for the three and six months ended June 30, 2016, respectively. The following table presents the calculation of net earnings per common share (“EPS”) — basic and diluted (in thousands, except per share data):
| Three months ended June 30, |  | Six Months Ended June 30,
| 2017 |  | 2016 |  | 2017 |  | 2016
Net (loss) income | $ | (37,060 | ) |  | $ | 16,606 |  |  | $ | 18,803 |  |  | $ | 34,766 |
Weighted-average number of common shares outstanding (for basic calculation) | 19,821 |  |  | 16,091 |  |  | 19,153 |  |  | 16,070 |
Dilutive securities | — |  |  | 909 |  |  | 1,159 |  |  | 894 |
Weighted-average common and common equivalent shares outstanding (for diluted calculation) | 19,821 |  |  | 17,000 |  |  | 20,312 |  |  | 16,964 |
EPS — basic | $ | (1.87 | ) |  | $ | 1.03 |  |  | $ | 0.98 |  |  | $ | 2.16 |
EPS — diluted | $ | (1.87 | ) |  | $ | 0.98 |  |  | $ | 0.93 |  |  | $ | 2.05 |

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- Definition The entire disclosure for earnings per share. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 45 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=64863997&loc=d3e1278-109256 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=64863997&loc=d3e1252-109256 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 55 -Paragraph 52 -URI http://asc.fasb.org/extlink&oid=65016374&loc=d3e4984-109258 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.21) -URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688 + Details
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