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Stock-Based Compensation | 3 Months Ended
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Apr. 03, 2015
Stockholders' Equity Note [Abstract] |
Stockholders' Equity Note Disclosure [Text Block] | Note 10 - Stock-Based Compensation The cost that has been charged against income for stock-based compensation is set forth below (in thousands):
|  | Three Months Ended |
|  | April 3, 2015 |  | April 4, 2014 |
Employee stock options |  | $ | 725 |  | $ | 859 |
Restricted stock |  |  | 271 |  |  | 299 |
Restricted stock units |  |  | 129 |  |  | 398 |
Nonemployee stock options |  |  | (7) |  |  | 22 |
Total |  | $ | 1,116 |  | $ | 1,578 |
The Company recorded stock-based compensation cost in the following categories on the accompanying condensed consolidated statements of operations (in thousands):
|  | Three Months Ended |
|  | April 3, 2015 |  | April 4, 2014 |
General and administrative |  | $ | 593 |  | $ | 928 |
Marketing and selling |  |  | 251 |  |  | 302 |
Research and development |  |  | 150 |  |  | 270 |
Total stock compensation expense |  | $ | 994 |  | $ | 1,500 |
Amounts capitalized as part of inventory |  |  | 122 |  |  | 78 |
Total |  | $ | 1,116 |  | $ | 1,578 |
Stock Option Plans The Amended and Restated 2003 Omnibus Equity Incentive Plan (“the Plan”) provides for various forms of stock-based incentives. To date, of the available forms of awards under the Plan, the Company has granted only stock options, restricted stock, unrestricted share grants, restricted stock units, and performance contingent stock units. Options under the plan are granted at fair market value on the date of grant, become exercisable over a three year period, or as determined by the Board of Directors, and expire over periods not exceeding 10 years from the date of grant. Certain option and share awards provide for accelerated vesting if there is a change in control (as defined in the Plan). Pursuant to the Plan, options for 3,619,790 shares were outstanding at April 3, 2015 with exercise prices ranging between $0.95 and $17.62 per share. Restricted stock grants under the Plan generally vest over a period between one to four years. There were 156,763 shares of restricted stock and 135,500 restricted stock units (RSUs) outstanding at April 3, 2015. As of April 3, 2015, there were 1,662,958 shares authorized and available for grants under the Plan. Assumptions The fair value of each option award is estimated on the date of grant using a Black-Scholes option valuation model applying the assumptions noted in the following table. Expected volatilities are based on historical volatility of the Company’s stock. The expected term of options granted is derived from the historical exercises and post-vesting cancellations and represents the period of time that options granted are expected to be outstanding. The Company has calculated a 6.92% estimated forfeiture rate based on historical forfeiture experience. The risk-free rate is based on the U.S. Treasury yield curve corresponding to the expected term at the time of the grant.
|  | Three Months Ended |
|  | April 3, 2015 |  | April 4, 2014 |
Expected dividend yield |  |  | 0 | % |  | 0 | %
Expected volatility |  |  | 57.46 | % |  | 55.25 | %
Risk-free interest rate |  |  | 1.70 | % |  | 1.28 | %
Expected term (in years) |  |  | 5.64 |  |  | 4.12 |
A summary of option activity under the Plan for the period ended April 3, 2015 is presented below:
|  | Options Shares (000’s) |
Outstanding at January 2, 2015 |  |  | 3,175 |
Granted |  |  | 568 |
Exercised |  |  | (104) |
Forfeited or expired |  |  | (19) |
Outstanding at April 3, 2015 |  |  | 3,620 |
Exercisable at April 3, 2015 |  |  | 2,384 |
Warrants outstanding and exercisable for the period ended April 3, 2015 and January 2, 2015 were 700,000. A summary of restricted stock and restricted stock units activity under the Plan for the period ended April 3, 2015 is presented below:
|  | Restricted Shares (000’s) |  | Restricted Units (000’s) |
Outstanding at January 2, 2015 |  |  | 247 |  |  | 156 |
Granted |  |  | - |  |  | 12 |
Vested |  |  | (90) |  |  | (10) |
Forfeited |  |  | - |  |  | (22) |
Outstanding at April 3, 2015 |  |  | 157 |  |  | 136 |

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- Definition The entire disclosure for shareholders' equity comprised of portions attributable to the parent entity and noncontrolling interest, including other comprehensive income. Includes, but is not limited to, balances of common stock, preferred stock, additional paid-in capital, other capital and retained earnings, accumulated balance for each classification of other comprehensive income and amount of comprehensive income. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(d),(e)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 4 -Subparagraph (SAB TOPIC 4.C) -URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187143-122770 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.29-31) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SAB TOPIC 4.E) -URI http://asc.fasb.org/extlink&oid=27010918&loc=d3e74512-122707 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 4 -Section C Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 4 -Section E Reference 7: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 08 -Article 4 Reference 8: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21506-112644 Reference 9: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Preferred Stock -URI http://asc.fasb.org/extlink&oid=6521494 Reference 10: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 29, 30, 31 -Article 5 Reference 11: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Article 3 Reference 12: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21463-112644 Reference 13: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770 Reference 14: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21475-112644 Reference 15: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21564-112644 Reference 16: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21488-112644 Reference 17: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21484-112644 Reference 18: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 08 -Paragraph d -Article 4 Reference 19: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 30 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6405834&loc=d3e23285-112656 + Details
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