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Weighted average grant date fair value of warrants assumptions (Details) | 12 Months Ended
--- | ---
Dec. 31, 2013
Risk free interest rate minimum | 0.59%
Risk free interest rate maximum | 0.84%
Expected term minimum in years | 3
Expected term maximum in years | 5
Expected dividends | 0.00%

X
- Definition Expected dividends to be paid to holders of the underlying shares or financial instruments (expressed as a percentage of the share or instrument's price). + References No definition available. + Details
Name: | fil_ExpectedDividends
Namespace Prefix: | fil_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition The minimum period of time an equity-based award is expected to be outstanding. An equity-based award's expected term is generally determined based on, among other factors, the instrument's contractual term and the effects of employees' expected exercise and post-vesting employment termination behavior. + References No definition available. + Details
Name: | fil_ExpectedTermMaximum
Namespace Prefix: | fil_
Data Type: | xbrli:decimalItemType
Balance Type: | na
Period Type: | duration

X
- Definition The minimum period of time an equity-based award is expected to be outstanding. An equity-based award's expected term is generally determined based on, among other factors, the instrument's contractual term and the effects of employees' expected exercise and post-vesting employment termination behavior. + References No definition available. + Details
Name: | fil_ExpectedTermMinimum
Namespace Prefix: | fil_
Data Type: | xbrli:decimalItemType
Balance Type: | na
Period Type: | instant

X
- Definition The minimum risk-free interest rate assumption that is used in valuing an option on its own shares. + References No definition available. + Details
Name: | fil_RiskFreeInterestRateMaximum
Namespace Prefix: | fil_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition The minimum risk-free interest rate assumption that is used in valuing an option on its own shares. + References No definition available. + Details
Name: | fil_RiskFreeInterestRateMinimum
Namespace Prefix: | fil_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration