Stock-Based Compensation Arrangements (Detail Textuals 2) (USD $)	12 Months Ended
Dec. 31, 2014	Dec. 31, 2013
Stock options
Stock based compensation, additional disclosures
Income (expense) recognized due to revision of forfeiture rate	$ 500,000	$ 40,000
Stock options \| Minimum
Stock based compensation, additional disclosures
Forfeiture rate (as a percent)	0.00%
Stock options \| Maximum
Stock based compensation, additional disclosures
Forfeiture rate (as a percent)	30.00%
Restricted Stock Units
Stock based compensation, additional disclosures
Income (expense) recognized due to revision of forfeiture rate	$ 500,000
Granted (in shares)		85,097
Restricted stock units, net of forfeitures	80,969

Represents the forfeiture rate used to estimate the pre-vesting option forfeitures.

No definition available.

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- Definition

Represents net number of share other than options (or share units) granted during the period.

+ References

No definition available.

+ Details

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- Definition

Represents the income expense recognized due to revision of the forfeiture rate.

+ References

No definition available.

+ Details

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- Details

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- Definition

The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

+ 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)(iii)(1)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

+ Details

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- Details

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- Details

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