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Quarterly Financial Information (unaudited) | 12 Months Ended
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Dec. 31, 2016
Quarterly Financial Information Disclosure [Abstract] |
Quarterly Financial Information (unaudited) | Note P - Quarterly Financial Information (unaudited) The following table summarizes the Company’s results of operations for each of the quarters in 2016 and 2015:
|  | Quarter ended |
|  | March 31 |  |  | June 30 |  |  | September 30 |  |  | December 31 |
2016 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net sales |  | $ | 78,682 |  |  | $ | 83,220 |  |  | $ | 88,299 |  |  | $ | 86,433 |
Gross profit |  |  | 24,289 |  |  |  | 26,806 |  |  |  | 28,855 |  |  |  | 29,464 |
Income before income taxes |  |  | 3,656 |  |  |  | 3,773 |  |  |  | 6,534 |  |  |  | 6,990 |
Net income |  |  | 2,658 |  |  |  | 2,755 |  |  |  | 4,742 |  |  |  | 5,100 |
Net income, basic |  | $ | 0.51 |  |  | $ | 0.53 |  |  | $ | 0.92 |  |  | $ | 1.00 |
Net income, diluted |  | $ | 0.51 |  |  | $ | 0.53 |  |  | $ | 0.92 |  |  | $ | 0.99 |
2015 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net sales |  | $ | 85,790 |  |  | $ | 87,869 |  |  | $ | 89,046 |  |  | $ | 91,961 |
Gross profit |  |  | 24,760 |  |  |  | 26,444 |  |  |  | 26,159 |  |  |  | 26,089 |
Income (loss) before income taxes |  |  | (59 | ) |  |  | 4,466 |  |  |  | 2,141 |  |  |  | 5,158 |
Net (loss) income |  |  | (256 | ) |  |  | 3,680 |  |  |  | 206 |  |  |  | 3,045 |
Net income (loss), basic |  |  | (0.05 | ) |  |  | 0.68 |  |  |  | 0.04 |  |  |  | 0.58 |
Net income (loss), diluted |  | $ | (0.05 | ) |  | $ | 0.68 |  |  | $ | 0.04 |  |  | $ | 0.58 |

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- Definition The entire disclosure for quarterly financial data. Includes, but is not limited to, tabular presentation of financial information for fiscal quarters, effect of year-end adjustments, and an explanation of matters or transactions that affect comparability of the information. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 270 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=68076893&loc=d3e1570-108306 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 270 -SubTopic 10 -Section 45 -Paragraph 13 -URI http://asc.fasb.org/extlink&oid=68064558&loc=d3e765-108305 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 270 -SubTopic 10 -Section 45 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=68064558&loc=d3e725-108305 + Details
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