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Stock Based Compensation (Tables) | 12 Months Ended
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Dec. 31, 2014
Stock Based Compensation [Abstract] |
Information with respect to stock options | Information with respect to stock options included within this plan is as follows:
|  | No. of Shares (in thousands) |  |  | Weighted Average Exercise Price |  |  | Aggregate Intrinsic Value (in thousands) |
Outstanding at December 31, 2013 |  |  | 1,048 |  |  | $ | 5.45 |  |  | $ | 270 |
Options granted |  |  | 417 |  |  |  | 5.15 |  |  |  |  |
Forfeited and cancelled |  |  | (225 | ) |  |  | 5.16 |  |  |  |  |
Outstanding at December 31, 2014 |  |  | 1,240 |  |  | $ | 5.28 |  |  | $ | 1,264 |
Vested and expected to vest at December 31, 2014 |  |  | 1,192 |  |  | $ | 5.28 |  |  | $ | 1,215 |
Total shares exercisable as of December 31, 2014 |  |  | 344 |  |  | $ | 5.60 |  |  | $ | 344 |
Shares remaining available for grant |  |  | 332 |  |  |  |  |  |  |  |  |
Assumptions for fair value of options at the date of the grant | The fair value of options at the date of the grant was estimated using the Black-Scholes model with the following assumptions for the respective period ending December 31:
|  | 2014 |  |  | 2013 |
Expected option life |  | 5.9 years |  |  | 4.6 years |
Weighted average risk-free interest rate |  |  | 1.7 | % |  |  | 1.3 | %
Weighted average expected volatility |  |  | 31 | % |  |  | 33 | %
Expected dividend yield |  |  | 0 | % |  |  | 0 | %
Share-based compensation by exercise price range | For the years ended December 31, 2014 and 2013, the expected option life was based on the Company’s historical experience with similar type options. Expected volatility is based on historical volatility levels of the Company’s common stock over the preceding period of time consistent with the expected life. The risk-free interest rate is based on the implied yield currently available on U.S. Treasury zero coupon issues with a remaining term equal to the expected life. Stock options outstanding at December 31, 2014 are summarized as follows:
Range of Exercise Prices |  |  | Number Outstanding (in thousands) |  | Weighted Average Remaining Life |  | Weighted Average Exercise Price |
$ | 4.06 - $6.25 |  |  |  | 1,203 |  | 8.62 years |  | $ | 5.07 |
$ | 6.26 - $11.40 |  |  |  | 37 |  | 1.37 years |  | $ | 10.04 |
$ | 4.06 - $11.40 |  |  |  | 1,240 |  | 8.41 years |  | $ | 5.28 |
Activity with respect to non-vested stock options | Current year activity with respect to the Company’s non-vested restricted stock awards is as follows:
Non-vested shares (in thousands) |  | Shares |  |  | Weighted Average grant- date fair value |
Balance at January 1, 2014 |  |  | 277 |  |  | $ | 4.65 |
Granted |  |  | 170 |  |  |  | 5.24 |
Vested |  |  | (112 | ) |  |  | 4.23 |
Forfeited and cancelled |  |  | (62 | ) |  |  | 3.46 |
Balance at December 31, 2014 |  |  | 273 |  |  | $ | 4.68 |

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- Definition Tabular disclosure of the changes in outstanding nonvested shares. + 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)(2) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition Tabular disclosure of option exercise prices, by grouped ranges, including the upper and lower limits of the price range, the number of shares under option, weighted average exercise price and remaining contractual option terms. + References Reference 1: 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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- 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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