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Stockholders' Equity (Tables) | 12 Months Ended
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Dec. 31, 2013
Valuation Assumptions of Granted Stock Options | The following table summarizes information about these granted stock options:
|  | 2013 |  |  | 2012 |  |  | 2011 |
Weighted-average risk-free interest rate |  |  | N/A |  |  |  | N/A |  |  |  | 1.21 | %
Dividend yield |  |  | N/A |  |  |  | N/A |  |  |  | — |
Weighted-average expected volatility |  |  | N/A |  |  |  | N/A |  |  |  | 48.59 | %
Total weighted-average expected forfeiture rate |  |  | N/A |  |  |  | N/A |  |  |  | 2.97 | %
Weighted-average expected life (years) |  |  | N/A |  |  |  | N/A |  |  |  | 5.90 |
Total weighted-average remaining vesting period in years (1) |  |  | 2.45 |  |  |  | 3.38 |  |  |  | 4.30 |
Total fair value of options granted |  |  | N/A |  |  |  | N/A |  |  | $ | 4,064,000 |
Stock-based compensation expense—Cost of sales (1) |  | $ | 227,000 |  |  | $ | 278,000 |  |  | $ | 60,000 |
Stock-based compensation expense—SG&A (1) |  | $ | 1,315,000 |  |  | $ | 1,374,000 |  |  | $ | 1,039,000 |
Income tax benefit (1) |  | $ | (601,000 | ) |  | $ | (603,000 | ) |  | $ | (390,000 | )
(1) | Information relates to stock options granted since 2006.
Non Qualified Stock Options [Member] |
Stock Option Activities of Stock Option Plans | The following information relates to our non-qualified stock option plans:
|  | 2013 |
|  | Shares |  |  | Weighted- Average Exercise Price |
Outstanding at beginning of year |  |  | 258,050 |  |  | $ | 8.50 |
Granted |  |  | — |  |  |  | N/A |
Exercised |  |  | (71,825 | ) |  | $ | 8.00 |
Surrendered, forfeited or expired |  |  | — |  |  |  | N/A |
Outstanding at end of year |  |  | 186,225 |  |  | $ | 8.70 |
Exercisable at end of year |  |  | 42,625 |  |  | $ | 8.96 |
|  | 2013 |  |  | 2012 |  |  | 2011 |
Weighted-average fair value per option granted during year |  |  | N/A |  |  |  | N/A |  |  | $ | 16.25 |
Total intrinsic value of options exercised during the year |  | $ | 1,821,000 |  |  | $ | 1,574,000 |  |  | $ | 2,110,000 |
Total fair value of options vested during the year |  | $ | 737,000 |  |  | $ | 731,000 |  |  | $ | 730,000 |
Stock Options Outstanding and Exercisable | The following tables summarize information about non-qualified stock options outstanding and exercisable at December 31, 2013:
|  | Stock Options Outstanding |
Exercise Prices |  | Shares Outstanding |  |  | Weighted- Average Remaining Contractual Life in Years |  |  | Weighted- Average Exercise Price |  |  | Intrinsic Value of Shares Outstanding |
$ 7.86 |  |  | 26,225 |  |  |  | 4.33 |  |  | $ | 7.86 |  |  | $ | 870,000 |
$ 8.01 |  |  | 155,000 |  |  |  | 2.75 |  |  | $ | 8.01 |  |  |  | 5,116,000 |
$34.50 |  |  | 5,000 |  |  |  | 7.92 |  |  | $ | 34.50 |  |  |  | 33,000 |
$7.86 – $34.50 |  |  | 186,225 |  |  |  | 3.11 |  |  | $ | 8.70 |  |  | $ | 6,019,000 |
|  | Stock Options Exercisable |
Exercise Prices |  | Shares Outstanding |  |  | Weighted- Average Remaining Contractual Life in Years |  |  | Weighted- Average Exercise Price |  |  | Intrinsic Value of Shares Outstanding |
$ 7.86 |  |  | 20,975 |  |  |  | 4.33 |  |  | $ | 7.86 |  |  | $ | 695,000 |
$ 8.01 |  |  | 20,000 |  |  |  | 2.75 |  |  | $ | 8.01 |  |  |  | 660,000 |
$34.50 |  |  | 1,650 |  |  |  | 7.92 |  |  | $ | 34.50 |  |  |  | 11,000 |
$7.86 – $34.50 |  |  | 42,625 |  |  |  | 3.73 |  |  | $ | 8.96 |  |  | $ | 1,366,000 |
Qualified Stock Option Plans [Member] |
Stock Option Activities of Stock Option Plans | The following information relates to our qualified stock option plans:
|  | December 31, 2013 |
|  | 2008 Plan |  |  | 1998 Plan |
Maximum number of securities for issuance |  |  | 1,000,000 |  |  |  | N/A |
Number of awards available to be granted |  |  | 372,130 |  |  |  | N/A |
Number of qualified options outstanding |  |  | 402,405 |  |  |  | 11,000 |
Number of qualified options exercisable |  |  | 190,670 |  |  |  | 11,000 |
|  | 2013 |
|  | Shares |  |  | Weighted- Average Exercise Price |
Outstanding at beginning of year |  |  | 478,915 |  |  | $ | 22.28 |
Granted |  |  | — |  |  |  | N/A |
Exercised |  |  | (43,285 | ) |  | $ | 10.16 |
Cancelled, forfeited or expired |  |  | (22,225 | ) |  | $ | 32.21 |
Outstanding at end of year |  |  | 413,405 |  |  | $ | 23.01 |
Exercisable at end of year |  |  | 201,670 |  |  | $ | 18.39 |
|  | 2013 |  |  | 2012 |  |  | 2011 |
Weighted-average fair value per option granted during year |  |  | N/A |  |  |  | N/A |  |  | $ | 16.00 |
Total intrinsic value of options exercised during the year |  | $ | 1,149,000 |  |  | $ | 895,000 |  |  | $ | 3,294,000 |
Total fair value of options vested during the year |  | $ | 828,000 |  |  | $ | 861,000 |  |  | $ | 208,000 |
Stock Options Outstanding and Exercisable | The following table summarizes information about qualified stock options outstanding and exercisable at December 31, 2013:
|  | Stock Options Outstanding |
Exercise Prices |  | Shares Outstanding |  |  | Weighted- Average Remaining Contractual Life in Years |  |  | Weighted- Average Exercise Price |  |  | Intrinsic Value of Shares Outstanding |
$ 5.10 |  |  | 11,000 |  |  |  | 1.92 |  |  | $ | 5.10 |  |  | $ | 395,000 |
$ 7.86 – $8.17 |  |  | 41,755 |  |  |  | 4.92 |  |  | $ | 7.87 |  |  |  | 1,384,000 |
$ 9.69 – $9.97 |  |  | 132,650 |  |  |  | 4.83 |  |  | $ | 9.69 |  |  |  | 4,156,000 |
$29.99 – $34.50 |  |  | 228,000 |  |  |  | 7.90 |  |  | $ | 34.40 |  |  |  | 1,509,000 |
$5.10 – $34.50 |  |  | 413,405 |  |  |  | 6.46 |  |  | $ | 23.01 |  |  | $ | 7,444,000 |
|  | Stock Options Exercisable |
Exercise Prices |  | Shares Outstanding |  |  | Weighted- Average Remaining Contractual Life in Years |  |  | Weighted- Average Exercise Price |  |  | Intrinsic Value of Shares Outstanding |
$ 5.10 |  |  | 11,000 |  |  |  | 1.92 |  |  | $ | 5.10 |  |  | $ | 395,000 |
$ 7.86 – $8.17 |  |  | 30,030 |  |  |  | 4.92 |  |  | $ | 7.86 |  |  |  | 996,000 |
$ 9.69 – $9.97 |  |  | 85,400 |  |  |  | 4.83 |  |  | $ | 9.69 |  |  |  | 2,675,000 |
$29.99 – $34.50 |  |  | 75,240 |  |  |  | 7.90 |  |  | $ | 34.40 |  |  |  | 498,000 |
$5.10 – $34.50 |  |  | 201,670 |  |  |  | 5.83 |  |  | $ | 18.39 |  |  | $ | 4,564,000 |

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- Definition Tabular disclosure of the number and weighted-average exercise prices (or conversion ratios) for share options (or share units) that were outstanding at the beginning and end of the year, vested and expected to vest, exercisable or convertible at the end of the year, and the number of share options or share units that were granted, exercised or converted, forfeited, and expired during the year. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + 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 -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (f)(2) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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