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Quarterly Data (Tables) | 12 Months Ended
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Dec. 31, 2017
Quarterly Financial Information Disclosure [Abstract] |
Quarterly Data |
Quarters (000's omitted, except per share data) |  |  |  |  |  |  |  |  |  |
2017 |  | First |  | Second |  | Third |  | Fourth |  | Total
Net sales |  | $ | 27,745 |  |  | $ | 38,849 |  |  | $ | 33,785 |  |  | $ | 30,171 |  |  | $ | 130,550 |
Cost of goods sold |  |  | 17,181 |  |  |  | 24,366 |  |  |  | 21,559 |  |  |  | 19,545 |  |  |  | 82,651 |
Gross profit |  |  | 10,564 |  |  |  | 14,483 |  |  |  | 12,226 |  |  |  | 10,626 |  |  |  | 47,899 |
Net income |  |  | 659 |  |  |  | 2,846 |  |  |  | 1,202 |  |  |  | (655 | ) |  |  | 4,052 |
Basic earnings per share |  | $ | 0.20 |  |  | $ | 0.85 |  |  | $ | 0.36 |  |  | $ | (0.20 | ) |  | $ | 1.21 |
Diluted earnings per share |  | $ | 0.18 |  |  | $ | 0.75 |  |  | $ | 0.32 |  |  | $ | (0.16 | ) |  | $ | 1.09 |
Dividends per share |  | $ | 0.10 |  |  | $ | 0.11 |  |  | $ | 0.11 |  |  | $ | 0.11 |  |  | $ | 0.43 |
2016 |  |  | First |  |  |  | Second |  |  |  | Third |  |  |  | Fourth |  |  |  | Total |
Net sales |  | $ | 25,288 |  |  | $ | 40,997 |  |  | $ | 31,913 |  |  | $ | 26,377 |  |  | $ | 124,574 |
Cost of goods sold |  |  | 16,103 |  |  |  | 26,302 |  |  |  | 20,050 |  |  |  | 16,564 |  |  |  | 79,019 |
Gross profit |  |  | 9,185 |  |  |  | 14,695 |  |  |  | 11,863 |  |  |  | 9,813 |  |  |  | 45,555 |
Net income |  |  | 565 |  |  |  | 3,267 |  |  |  | 1,473 |  |  |  | 545 |  |  |  | 5,851 |
Basic earnings per share |  | $ | 0.17 |  |  | $ | 0.98 |  |  | $ | 0.44 |  |  | $ | 0.16 |  |  | $ | 1.76 |
Diluted earnings per share |  | $ | 0.16 |  |  | $ | 0.91 |  |  | $ | 0.40 |  |  | $ | 0.15 |  |  | $ | 1.64 |
Dividends per share |  | $ | 0.10 |  |  | $ | 0.10 |  |  | $ | 0.10 |  |  | $ | 0.10 |  |  | $ | 0.40 |

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- References No definition available. + Details
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- Definition Tabular disclosure of quarterly financial data. Includes, but is not limited to, financial information for fiscal quarters, cumulative effect of a change in accounting principle and earnings per share data. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 270 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a)-(j) -URI http://asc.fasb.org/extlink&oid=84173487&loc=d3e1280-108306 + Details
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