Profit-Sharing 401(k) Plan (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Compensation and Retirement Disclosure [Abstract]
Service requirement for eligibility in the plan	1 month
Defined Contribution Plan, Minimum Annual Contribution By Employee, Percent	1.00%
Defined Contribution Plan, Maximum Annual Contribution Per Employee, Percent	15.00%
Defined Contribution Plan, Employer Discretionary Contribution Amount Accrued	$ 0.4
Employer's discretionary annual contribution to the plan		$ 0.2	$ 0.4
Ratable vesting period for employer's contributuions to the plan	6 years

Defined Contribution Plan, Employer Discretionary Contribution Amount Accrued

No definition available.

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Defined Contribution Plan, Employers Matching Contribution, Vesting Period

No definition available.

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Defined Contribution Plan, Minimum Annual Contribution By, Percent of Annual Compensation

No definition available.

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Profit-Sharing and Deferred Compensation Plan, Eligibility Service Period

No definition available.

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Amount of discretionary contributions made by an employer to a defined contribution plan.

No definition available.

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Maximum percentage of employee gross pay the employee may contribute to a defined contribution plan.

No definition available.

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