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Quarterly Results of Operations (Unaudited) | 12 Months Ended
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Dec. 31, 2012
Quarterly Financial Information Disclosure [Abstract] |
Quarterly Results of Operations (Unaudited) | QUARTERLY RESULTS OF OPERATIONS (UNAUDITED) Quarterly data for the years ended December 31, 2012 and 2011 consisted of the following (in thousands, except per share amounts):
| Quarter Ended
| March 31 |  | June 30 |  | September 30 |  | December 31
2012 |  |  |  |  |  |  |  |  |  |  |
Net sales | $ | 95,618 |  |  | $ | 100,532 |  |  | $ | 95,907 |  |  | $ | 102,231 |
Gross profit | 44,170 |  |  | 47,024 |  |  | 45,335 |  |  | 45,463 |
Income from operations | 8,007 |  |  | 8,222 |  |  | 9,082 |  |  | 4,330 |
Income tax expense | 2,169 |  |  | 2,719 |  |  | 1,811 |  |  | 1,209 |
Net income | 5,748 |  |  | 6,095 |  |  | 7,226 |  |  | 641 |
Basic earnings per common share | 0.14 |  |  | 0.14 |  |  | 0.17 |  |  | 0.02 |
Diluted earnings per common share | 0.14 |  |  | 0.14 |  |  | 0.17 |  |  | 0.01 |
2011 |  |  |  |  |  |  |  |  |  |  |
Net sales | $ | 86,631 |  |  | $ | 91,249 |  |  | $ | 90,477 |  |  | $ | 91,092 |
Gross profit | 39,785 |  |  | 42,484 |  |  | 41,054 |  |  | 42,145 |
Income from operations | 10,210 |  |  | 10,847 |  |  | 6,507 |  |  | 5,626 |
Income tax expense | 3,159 |  |  | 3,746 |  |  | 2,120 |  |  | 806 |
Net income | 6,639 |  |  | 6,872 |  |  | 4,563 |  |  | 4,970 |
Basic earnings per common share | 0.19 |  |  | 0.19 |  |  | 0.11 |  |  | 0.12 |
Diluted earnings per common share | 0.18 |  |  | 0.18 |  |  | 0.11 |  |  | 0.12 |
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. Net income for the quarter ended December 31, 2012 was negatively impacted primarily by acquisition-related costs arising from our acquisition of Thomas Medical and the impairment of a cost-method investment. See Notes 2 and 16 for additional information related to these items.

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- Definition The entire disclosure for the quarterly financial data in the annual financial statements. The disclosure may include a tabular presentation of financial information for each fiscal quarter for the current and previous year, including revenues, gross profit, income or loss before extraordinary items and earnings per share data. It also includes an indication if the information in the note is unaudited, comments on the aggregate effect of year-end adjustments, and an explanation of matters or transactions that affect comparability or are pertinent to an understanding of the information furnished. + 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=20225539&loc=d3e1280-108306 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 6 -Section G -Subsection 1 Reference 3: 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=6372559&loc=d3e765-108305 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Principles Board Opinion (APB) -Number 28 -Paragraph 30 -Subparagraph a-j -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 5: 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=6372559&loc=d3e725-108305 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Principles Board Opinion (APB) -Number 28 -Paragraph 23, 24 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 7: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-K (SK) -Number 229 -Section 302 -Paragraph a + Details
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