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Stock-based Compensation (Tables) | 6 Months Ended
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Jun. 30, 2012
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Schedule of Employee Service Share-based Compensation, Allocation of Recognized Period Costs | S tock-based compensation expense before income tax expense for the three and six-month periods ended June 30, 2012 and 2011, consisted of the following (in thousands):
| Three Months Ended |  | Six Months Ended
| June 30, |  | June 30,
| 2012 |  | 2011 |  | 2012 |  | 2011
Cost of goods sold | $ | 59 |  |  | $ | 38 |  |  | $ | 141 |  |  | $ | 89 |
Research and development | 35 |  |  | 16 |  |  | 67 |  |  | 29 |
Selling, general, and administrative | 376 |  |  | 257 |  |  | 817 |  |  | 528 |
Stock-based compensation expense before taxes | $ | 470 |  |  | $ | 311 |  |  | $ | 1,025 |  |  | $ | 646 |
Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block] | During the three and six-month periods ended June 30, 2012, we granted 120,000 stock awards. During the three and six-month periods ended June 30, 2011, there were no stock awards. We use the Black-Scholes methodology to value the stock-based compensation expense for options. In applying the Black-Scholes methodology to our outstanding option grants, we used the following assumptions:
| Six Months Ended
| June 30,
| 2012 |  | 2011
Risk-free interest rate | 0.95% |  | —
Expected option life | 6 years |  | —
Expected dividend yield | — |  | —
Expected price volatility | 42.01% |  | —

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- Definition Tabular disclosure of the allocation of equity-based compensation costs to a given line item on the balance sheet and income statement for the period. This may include the reporting line for the costs and the amount capitalized and expensed. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5047-113901 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB TOPIC 14.F) -URI http://asc.fasb.org/extlink&oid=6793087&loc=d3e301413-122809 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 123R -Paragraph A240 -Subparagraph g(1) -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 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 14 -Section F Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 123R -Paragraph 64 -Subparagraph b -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. + Details
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- Definition Tabular disclosure of the significant assumptions used during the year to estimate the fair value of stock options, including, but not limited to: (a) expected term of share options and similar instruments, (b) expected volatility of the entity's shares, (c) expected dividends, (d) risk-free rate(s), and (e) discount for post-vesting restrictions. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Topic 718 -SubTopic 10 -Publisher FASB -Number -Article -Subparagraph (f)(2) -Name Accounting Standards Codification -Paragraph 2 -Section 50 -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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