Employee Benefit Plans (Details) (USD $)	12 Months Ended
Dec. 31, 2014	Dec. 31, 2013
401(k) Plan disclosures
Employee contribution percentage	50.00%
Matching employer contribution	$ 69,000	$ 61,000

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

No definition available.

Name:	us-gaap_DefinedContributionPlanMaximumAnnualContributionsPerEmployeePercent
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration