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Quarterly Results of Operations (Unaudited) | 12 Months Ended
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Dec. 31, 2018
Quarterly Financial Information Disclosure [Abstract] |
Quarterly Results of Operations (Unaudited) | QUARTERLY RESULTS OF OPERATIONS (UNAUDITED) Quarterly data for the years ended December 31, 2018 and 2017 consisted of the following (in thousands, except per share amounts):
| Quarter Ended
| March 31 |  | June 30 |  | September 30 |  | December 31
2018 |  |  |  |  |  |  |  |  |  |  |
Net sales | $ | 203,035 |  |  | $ | 224,810 |  |  | $ | 221,659 |  |  | $ | 233,249 |
Gross profit | 88,056 |  |  | 100,009 |  |  | 102,039 |  |  | 104,666 |
Income from operations | 8,781 |  |  | 15,114 |  |  | 21,061 |  |  | 13,661 |
Income tax expense | 1,090 |  |  | 624 |  |  | 2,766 |  |  | 3,022 |
Net income | 5,269 |  |  | 10,941 |  |  | 16,619 |  |  | 9,188 |
Basic earnings per common share | 0.10 |  |  | 0.22 |  |  | 0.31 |  |  | 0.17 |
Diluted earnings per common share | 0.10 |  |  | 0.21 |  |  | 0.30 |  |  | 0.16 |
2017 |  |  |  |  |  |  |  |  |  |  |
Net sales | $ | 171,069 |  |  | $ | 186,549 |  |  | $ | 179,337 |  |  | $ | 190,897 |
Gross profit | 75,942 |  |  | 84,141 |  |  | 80,514 |  |  | 85,656 |
Income from operations | 5,609 |  |  | 13,362 |  |  | 879 |  |  | 13,219 |
Income tax expense | 690 |  |  | 1,830 |  |  | 1,364 |  |  | 4,474 |
Net income (loss) | 14,803 |  |  | 9,483 |  |  | (3,569 | ) |  | 6,806 |
Basic earnings per common share | 0.33 |  |  | 0.19 |  |  | (0.07 | ) |  | 0.14 |
Diluted earnings per common share | 0.32 |  |  | 0.19 |  |  | (0.07 | ) |  | 0.13 |
Basic and diluted earnings per share are computed independently for each of the quarters presented. Therefore, the sum of the quarterly amounts may not equal the total computed for the year.

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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://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 270 -URI http://asc.fasb.org/topic&trid=2126967 + Details
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