Annual report pursuant to Section 13 and 15(d)

Equity - Summary of weighted average assumptions for employee option (Details 1)

v2.4.1.9
Equity - Summary of weighted average assumptions for employee option (Details 1) (Stock Option, USD $)
12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Stock Option
   
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Dividend yield 0.00%us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate
/ us-gaap_AwardTypeAxis
= us-gaap_EmployeeStockOptionMember
 
Volatility factor 75.00%us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate
/ us-gaap_AwardTypeAxis
= us-gaap_EmployeeStockOptionMember
  
Risk-free interest rate 1.93%us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate
/ us-gaap_AwardTypeAxis
= us-gaap_EmployeeStockOptionMember
  
Expected term (years) 6 years 6 months  
Weighted-average fair value of options granted during the periods $ 1.21us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue
/ us-gaap_AwardTypeAxis
= us-gaap_EmployeeStockOptionMember