Annual report pursuant to Section 13 and 15(d)

Assumptions used to value the options granted and warrants issued using the Black-Scholes option pricing model (Details)

v2.4.1.9
Assumptions used to value the options granted and warrants issued using the Black-Scholes option pricing model (Details)
 12 Months Ended
Dec. 31, 2014
Series E and G  
Stock price volatility 111.60%us-gaap_FairValueAssumptionsWeightedAverageVolatilityRate
/ us-gaap_StatementEquityComponentsAxis
= fil_SeriesEAndGMember
Risk-free rate of return 4.26%us-gaap_FairValueAssumptionsRiskFreeInterestRate
/ us-gaap_StatementEquityComponentsAxis
= fil_SeriesEAndGMember
Annual dividend yield 0.00%fil_AnnualDividendYield
/ us-gaap_StatementEquityComponentsAxis
= fil_SeriesEAndGMember
Expected life (in years) 0.5fil_ExpectedLifeInYears
/ us-gaap_StatementEquityComponentsAxis
= fil_SeriesEAndGMember
Series F and H  
Stock price volatility 111.60%us-gaap_FairValueAssumptionsWeightedAverageVolatilityRate
/ us-gaap_StatementEquityComponentsAxis
= fil_SeriesFAndHMember
Risk-free rate of return 4.26%us-gaap_FairValueAssumptionsRiskFreeInterestRate
/ us-gaap_StatementEquityComponentsAxis
= fil_SeriesFAndHMember
Annual dividend yield 0.00%fil_AnnualDividendYield
/ us-gaap_StatementEquityComponentsAxis
= fil_SeriesFAndHMember
Expected life (in years) 3.0fil_ExpectedLifeInYears
/ us-gaap_StatementEquityComponentsAxis
= fil_SeriesFAndHMember