Annual report pursuant to Section 13 and 15(d)

Retirement Plan (Details Textual)

v2.4.1.9
Retirement Plan (Details Textual) (USD $)
12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Defined Contribution Plan Disclosure [Line Items]    
Defined Contribution Plan, Employer Discretionary Contribution Amount $ 0us-gaap_DefinedContributionPlanEmployerDiscretionaryContributionAmount $ 0us-gaap_DefinedContributionPlanEmployerDiscretionaryContributionAmount