Income Taxes (Details) (USD $)	3 Months Ended
Mar. 31, 2014
Operating Loss Carryforwards [Line Items]
Excess tax benefit from exercise of stock options	$ 4,100,000
Deferred tax asset	5,600,000
Domestic Tax Authority [Member]
Operating Loss Carryforwards [Line Items]
Net operating loss carry forwards	17,400,000
State and Local Jurisdiction [Member]
Operating Loss Carryforwards [Line Items]
Net operating loss carry forwards	$ 14,500,000
Minimum [Member] \| Domestic Tax Authority [Member]
Operating Loss Carryforwards [Line Items]
Net operating loss carry forwards, expiration date	Jan. 01, 2017
Minimum [Member] \| State and Local Jurisdiction [Member]
Operating Loss Carryforwards [Line Items]
Net operating loss carry forwards, expiration date	Jan. 01, 2024
Maximum [Member] \| Domestic Tax Authority [Member]
Operating Loss Carryforwards [Line Items]
Net operating loss carry forwards, expiration date	Jan. 01, 2032
Maximum [Member] \| State and Local Jurisdiction [Member]
Operating Loss Carryforwards [Line Items]
Net operating loss carry forwards, expiration date	Jan. 01, 2032

Amount after allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards, net of deferred tax liability attributable to taxable temporary differences.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 740

-SubTopic 10

-Section 50

-Paragraph 2

-URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32537-109319

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Balance Type:	debit
Period Type:	instant

- Definition

Amount of cash outflow for realized tax benefit related to deductible compensation cost reported on the entity's tax return for equity instruments in excess of the compensation cost for those instruments recognized for financial reporting purposes.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 20

-Section 55

-Paragraph 24

-URI http://asc.fasb.org/extlink&oid=32706628&loc=d3e11374-113907

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- Definition

Amount of operating loss carryforward, before tax effects, available to reduce future taxable income under enacted tax laws.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 740

-SubTopic 10

-Section 50

-Paragraph 3

-Subparagraph (a)

-URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32559-109319

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- Definition

Expiration date of each operating loss carryforward included in operating loss carryforward, in CCYY-MM-DD format.

+ References

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