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Warrants (Tables)
9 Months Ended
Sep. 30, 2014
Warrants (Tables) [Line Items]  
Schedule of Sharebased Compensation Warrants Activity [Table Text Block]

 

 

 

 

Weighted

Average

Exercise

Price

 

 

 

 

 

 

 

 

 

 

 

Range of

Exercise Prices

 

Shares

 

 

Outstanding at December 31, 2013

1,139,535

 

$

1.68

 

$1.25 - $10.40

Issued

812,000

 

$

4.20

 

$4.20

Exercised

(800,000)

 

$

1.25

 

$1.25

Outstanding at September 30, 2014

1,151,535

 

$

3.76

 

$1.25 - $10.40

Warrants exercisable at September 30, 2014

339,535

 

$

2.70

 

$1.25 - $10.40

Black Scholes [Member]
 
Warrants (Tables) [Line Items]  
Schedule of Share Based Payment Award Warrants Valuation Assumptions [Table Text Block]

 

September 30,

2014

 

April 4,

2014

 

 

Warrants valued

 

812,000

 

 

812,000

CDTi stock price

$

1.72

 

$

2.95

Strike price

$

4.20

 

$

4.20

Expected volatility

 

83.6%

 

 

84.9%

Risk-free interest rate

 

1.8%

 

 

1.9%

Dividend yield

 

 

 

Expected life in years

 

5.0

 

 

5.5

Monte Carlo Simulation Model [Member]
 
Warrants (Tables) [Line Items]  
Schedule of Share Based Payment Award Warrants Valuation Assumptions [Table Text Block]

 

 

September 30,

2014

 

 

December 31,

2013

 

 

Warrants valued

 

159,000

 

 

959,000

CDTi stock price

$

1.72

 

$

1.51

Strike price

$

1.25

 

$

1.25

Expected volatility (1)

 

104.9%

 

 

73.6%

Risk-free interest rate

 

1.4%

 

 

1.8%

Dividend yield

 

 

 

Expected life in years

 

3.8

 

 

4.5

 

 

 

 

 

 

(1) At September 30, 2014, the Company's post-Merger historical volatility began to be considered representive of expected volatility going forward for these warrants.