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Summary of Significant Accounting Policies (Tables)
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12 Months Ended |
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Dec. 31, 2012
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| Summary of Significant Accounting Policies [Abstract] |
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| Schedule of Inventory, Current [Table Text Block] |
Inventories consist of the following at December 31: | | | | | | | | | | 2012 | | 2011 | Raw material | $ | 20,808 |
| | $ | 25,227 |
| Work in process | 3,013 |
| | 2,901 |
| Finished goods | 12,512 |
| | 12,295 |
| Total | $ | 36,333 |
| | $ | 40,423 |
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| Property, Plant and Equipment [Table Text Block] |
Property and equipment consist of the following at December 31: | | | | | | | | | | 2012 | | 2011 | Machinery and equipment | $ | 78,332 |
| | $ | 73,390 |
| Land, building and building improvements | 61,521 |
| | 60,334 |
| Molds | 27,704 |
| | 24,133 |
| Computer equipment and software | 19,611 |
| | 17,518 |
| Furniture and fixtures | 3,339 |
| | 2,298 |
| Construction in progress | 8,266 |
| | 5,277 |
| Total property and equipment, cost | 198,773 |
| | 182,950 |
| Accumulated depreciation | (112,836 | ) | | (99,902 | ) | Net property and equipment | $ | 85,937 |
| | $ | 83,048 |
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All property and equipment are stated at cost. We use the straight-line method for depreciating property and equipment over their estimated useful lives. Estimated useful lives are: | | | Buildings | 15 - 30 years | Building improvements | 15 years | Machinery and equipment | 2 - 10 years | Furniture, fixtures and molds | 2 - 5 years | Computer equipment and software | 3 - 5 years |
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| Intangible Assets Disclosure [Text Block] |
Intangible Assets Intangible assets, carried at cost less accumulated amortization and amortized on a straight-lined basis, were as follows: | | | | | | | | | | | | | | | | | | Weighted Average | | December 31, 2012 | | | Amortization Life in Years | | Cost | | Accumulated Amortization | | Net | Patents | | 9 | | $ | 10,287 |
| | $ | 5,350 |
| | $ | 4,937 |
| MCDA contract * | | 10 | | 8,571 |
| | 6,571 |
| | 2,000 |
| Customer contracts | | 9 | | 5,319 |
| | 2,317 |
| | 3,002 |
| Trademarks | | 4 | | 425 |
| | 412 |
| | 13 |
| Total | | | | $ | 24,602 |
| | $ | 14,650 |
| | $ | 9,952 |
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| | | | | | | | | | | | | | | | | | Weighted Average | | December 31, 2011 | | | Amortization Life in Years | | Cost | | Accumulated Amortization | | Net | Patents | | 9 | | $ | 9,142 |
| | $ | 4,335 |
| | $ | 4,807 |
| MCDA contract * | | 10 | | 8,571 |
| | 5,714 |
| | 2,857 |
| Customer contracts | | 9 | | 5,319 |
| | 1,684 |
| | 3,635 |
| Trademarks | | 4 | | 425 |
| | 305 |
| | 120 |
| Total | | | | $ | 23,457 |
| | $ | 12,038 |
| | $ | 11,419 |
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*MCDA contract: Manufacturing, Commercialization and Development Agreement with Hospira, Inc. (“Hospira”), dated May 1, 2005 (the "MCDA”). Amortization expense in 2012, 2011 and 2010 was $2.6 million, $2.7 million and $2.8 million, respectively. Estimated annual amortization for each of the next five years is approximately $2.5 million for 2013, $2.3 million for 2014, $1.6 million for 2015, $1.0 million for 2016 and $0.9 million for 2017.
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| Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] |
The following table presents the calculation of net earnings per common share (“EPS”) — basic and diluted. | | | | | | | | | | | | | | | | Year ended December 31, (in thousands, except per share data) | | | 2012 |
| 2011 |
| 2010 | Net income | | $ | 41,281 |
| | $ | 44,669 |
| | $ | 29,923 |
| Weighted average number of common shares outstanding (basic) | | 14,223 |
| | 13,835 |
| | 13,611 |
| Dilutive securities | | 502 |
| | 326 |
| | 244 |
| Weighted average common and common equivalent shares outstanding (diluted) | | 14,725 |
| | 14,161 |
| | 13,855 |
| EPS - basic | | $ | 2.90 |
| | $ | 3.23 |
| | $ | 2.20 |
| EPS - diluted | | $ | 2.80 |
| | $ | 3.15 |
| | $ | 2.16 |
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