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Note 12 Stock-Based Compensation | 6 Months Ended
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Mar. 31, 2012
Share-based Compensation [Abstract] |
Disclosure of Compensation Related Costs, Share-based Payments [Text Block] | Stock-Based Compensation Stock compensation expense was as follows:
| Three Months Ended |  | Six Months Ended
| March 31, 2012 |  | April 2, 2011 |  | March 31, 2012 |  | April 2, 2011
| (In thousands) |  |  |  |
Cost of sales | $ | 983 |  |  | $ | 1,013 |  |  | $ | 1,890 |  |  | $ | 2,052 |
Selling, general and administrative | 3,519 |  |  | 3,184 |  |  | 6,649 |  |  | 5,790 |
Research and development | 27 |  |  | 40 |  |  | 54 |  |  | 82 |
Total | $ | 4,529 |  |  | $ | 4,237 |  |  | $ | 8,593 |  |  | $ | 7,924 |
| Three Months Ended |  | Six Months Ended
| March 31, 2012 |  | April 2, 2011 |  | March 31, 2012 |  | April 2, 2011
| (In thousands) |  |  |  |
Stock options | $ | 2,547 |  |  | $ | 2,661 |  |  | $ | 5,002 |  |  | $ | 5,411 |
Restricted stock units | 1,982 |  |  | 1,576 |  |  | 3,591 |  |  | 2,513 |
Total | $ | 4,529 |  |  | $ | 4,237 |  |  | $ | 8,593 |  |  | $ | 7,924 |
In March 2012, the Company's shareholders approved the reservation of an additional 2.5 million shares of common stock for future issuance under the Company's 2009 stock plan. As of March 31, 2012, an aggregate of 17.1 million shares were authorized under the plan and 3.6 million shares of common stock were available for grant under the Company's stock plans, which include stock options and restricted stock awards and units. Stock Options Assumptions used to estimate the fair value of stock options granted were as follows:
| Three Months Ended |  | Six Months Ended
| March 31, 2012 |  | April 2, 2011 |  | March 31, 2012 |  | April 2, 2011
Volatility | 85.8 | % |  | 82.6 | % |  | 85.6 | % |  | 82.3 | %
Risk-free interest rate | 0.9 | % |  | 2.1 | % |  | 0.9 | % |  | 1.7 | %
Dividend yield | — | % |  | — | % |  | — | % |  | — | %
Expected life of options (years) | 5.0 |  |  | 5.0 |  |  | 5.0 |  |  | 5.0 |
Stock option activity was as follows:
| Number of Shares |  | Weighted- Average Exercise Price ($) |  | Weighted- Average Remaining Contractual Term (Years) |  | Aggregate Intrinsic Value of In-The-Money Options ($)
| (In thousands) |  |  |  |  |  | (In thousands)
Outstanding, October 1, 2011 | 10,922 |  |  | 13.85 |  |  | 6.89 |  |  | 14,195 |
Granted | 892 |  |  | 8.64 |  |  |  |  |
Exercised/Cancelled/Forfeited/Expired | (208 | ) |  | 12.88 |  |  |  |  |
Outstanding, December 31, 2011 | 11,606 |  |  | 13.46 |  |  | 6.91 |  |  | 16,839 |
Granted | 116 |  |  | 10.99 |  |  |  |  |
Exercised/Cancelled/Forfeited/Expired | (480 | ) |  | 8.76 |  |  |  |  |
Outstanding, March 31, 2012 | 11,242 |  |  | 13.64 |  |  | 6.64 |  |  | 31,022 |
Vested and expected to vest, March 31, 2012 | 10,446 |  |  | 13.99 |  |  | 6.50 |  |  | 28,453 |
Exercisable, March 31, 2012 | 7,524 |  |  | 15.91 |  |  | 5.72 |  |  | 19,021 |
The weighted-average grant date fair value of stock options granted during the three and six months ended March 31, 2012 was $7.36 per share and $5.96 per share, respectively. The weighted-average grant date fair value of stock options granted during the three and six months ended April 2, 2011 was $10.52 per share and $9.00 per share, respectively. The aggregate intrinsic value in the preceding table represents the total pre-tax intrinsic value of in-the-money options that would have been received by the option holders had all option holders exercised their options at the Company's closing stock price on the date indicated. As of March 31, 2012, unrecognized compensation expense related to stock options was $21.4 million, and is expected to be recognized over a weighted average period of 3.5 years. Restricted Stock Units The Company grants restricted stock units to executive officers, directors and certain management employees. These units vest over periods ranging from one to four years and are automatically exchanged for shares of common stock at the vesting date. Compensation expense associated with these units is recognized ratably over the vesting period. As of March 31, 2012, unrecognized compensation expense related to restricted stock units was $14.1 million, and is expected to be recognized over a weighted average period of 1.8 years. Activity with respect to the Company's restricted stock units was as follows:
| Number of Shares |  | Weighted- Average Grant Date Fair Value ($) |  | Weighted- Average Remaining Contractual Term (Years) |  | Aggregate Intrinsic Value ($)
| (In thousands) |  |  |  |  |  | (In thousands)
Outstanding, October 1, 2011 | 1,838 |  |  | 11.42 |  |  | 1.63 |  |  | 14,249 |
Granted | 610 |  |  | 8.69 |  |  |  |  |
Vested/Cancelled | (235 | ) |  | 11.39 |  |  |  |  |
Outstanding, December 31, 2011 | 2,213 |  |  | 10.67 |  |  | 1.79 |  |  | 19,119 |
Granted | 175 |  |  | 11.44 |  |  |  |  |
Vested/Cancelled | (86 | ) |  | 13.84 |  |  |  |  |
Outstanding, March 31, 2012 | 2,302 |  |  | 10.61 |  |  | 1.55 |  |  | 26,519 |
Expected to vest, March 31, 2012 | 1,717 |  |  | 10.36 |  |  | 1.55 |  |  | 19,776 |

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- Definition The entire disclosure for compensation-related costs for equity-based compensation, which may include disclosure of policies, compensation plan details, allocation of equity compensation, incentive distributions, equity-based arrangements to obtain goods and services, deferred compensation arrangements, employee stock ownership plan details and employee stock purchase plan details. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5444-113901 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Statement of Position (SOP) -Number 93-6 -Paragraph 53 -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 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 14 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 123R -Paragraph 64, 65, A240 -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 718 -SubTopic 40 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6418621&loc=d3e17540-113929 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5047-113901 Reference 7: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 50 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6406099&loc=d3e25284-112666 Reference 8: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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