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Computation of Earnings Per Share | 12 Months Ended
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Dec. 31, 2014
Earnings Per Share [Abstract] |
Computation of Earnings Per Share | Note I - Computation of Earnings Per Share Basic earnings per share were computed by dividing net income by the weighted-average number of shares of common stock outstanding for each respective period. Diluted earnings per share were calculated by dividing net income by the weighted-average of all potentially dilutive shares of common stock that were outstanding during the years presented. The calculation of basic and diluted earnings per share for the year ended December 31 was as follows:
|  | 2014 |  |  | 2013 |  |  | 2012 |
Numerator |  |  |  |  |  |  |  |  |  |  |  |
Net income |  | $ | 12,861 |  |  | $ | 20,587 |  |  | $ | 29,286 |
Denominator |  |  |  |  |  |  |  |  |  |  |  |
Determination of shares (in thousands) |  |  |  |  |  |  |  |  |  |  |  |
Weighted-average common shares outstanding |  |  | 5,377 |  |  |  | 5,361 |  |  |  | 5,324 |
Dilutive effect - share-based awards |  |  | 5 |  |  |  | 106 |  |  |  | 47 |
Diluted weighted-average common shares outstanding |  |  | 5,382 |  |  |  | 5,467 |  |  |  | 5,371 |
Earnings per common share attributable to PLPC shareholders |  |  |  |  |  |  |  |  |  |  |  |
Basic |  | $ | 2.39 |  |  | $ | 3.84 |  |  | $ | 5.50 |
Diluted |  | $ | 2.39 |  |  | $ | 3.77 |  |  | $ | 5.45 |
For the year ended December 31, 2014, 2013 and 2012, 25,000, 1,500 and 17,750 stock options, respectively, were excluded from the calculation of diluted earnings per share as the effect would have been anti-dilutive. For the year ended December 31, 2014, 2013 and 2012, 52,368, 0 and 37,985 restricted share units, respectively, were excluded from the calculation of diluted earnings per share as the effect of the exercise would have been anti-dilutive.

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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 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 Reference 2: 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=7655603&loc=d3e1278-109256 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=7655603&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=32703322&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=26872669&loc=d3e20235-122688 + Details
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