Stock-Based Compensation (Details)	12 Months Ended
	Dec. 31, 2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares Available For Issuance at December 31, 2014	0
2011 Stock Incentive Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Date Adopted	Apr. 07, 2011
Shares Reserved For Issuance	2,000,000
Shares Available For Issuance at December 31, 2014	0
2005 Stock Option Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Date Adopted	Dec. 16, 2005
Shares Reserved For Issuance	600,000
Shares Available For Issuance at December 31, 2014	0
2003 Stock Option Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Date Adopted	Sep. 24, 2003
Shares Reserved For Issuance	1,500,000
Shares Available For Issuance at December 31, 2014	0
2003 Stock Incentive Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Date Adopted	Oct. 31, 2003
Shares Reserved For Issuance	300,000
Shares Available For Issuance at December 31, 2014	0
2002 Stock Option Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Date Adopted	Jun. 06, 2002
Shares Reserved For Issuance	100,000
Shares Available For Issuance at December 31, 2014	0