Note 8 - Warrant Liability |
12 Months Ended | ||||||||||||||||||||||||||||
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Dec. 31, 2018 | |||||||||||||||||||||||||||||
Notes to Financial Statements | |||||||||||||||||||||||||||||
Warrant Liabilities [Text Block] |
In February 2016, the Company completed, in two tranches, a non-brokered private placement of 234,375 units with each unit consisting of one common share and one half of one common share purchase warrant. The Company issued 117,188 warrants. Each warrant entitled the holder to purchase one common share at a price of $5.00 Canadian dollars at any time prior to expiry on February 18 or 25, 2018 for Tranche 1 and Tranche 2, respectively.As the warrant exercise price was stated in Canadian dollars and the Company’s functional currency is the U.S. dollar, the warrants were deemed to be derivative instruments, with their estimated fair value classified as a liability on the Company’s consolidated balance sheet. The initial estimated fair value of the warrants was recorded as a warrant liability with subsequent changes in the estimated fair value recognized in the consolidated statements of operations and comprehensive loss. The Company allocated $281,000 of the net proceeds to the warrant liability and the balance of the proceeds to the common shares. The initial fair value of the warrants was determined using a Black-Scholes pricing model with the following assumptions: expected volatilities of 191.8 – 225.0%, risk-free interest rates of 0.43 – 0.49%, and expected life of 2 years.In connection with the offering, the Company issued an aggregate of 10,915 compensation warrants. Each compensation warrant entitled the holder to purchase one common share at $5.00 Canadian dollars for a period of 2 years from the date of issuance. The Company estimated the value of these warrants at $24,000, which was included in the issuance costs. The initial fair value of the warrants was determined using a Black-Scholes valuation model with the following assumptions: expected volatilities of 191.8 – 225.0%, risk-free interest rates of 0.43 – 0.49%, and expected life of 2 years.During February 2018,
121,256 common shares were issued on the exercise of warrants for gross proceeds of approximately $483,000 and the remaining 4,346 warrants expired.The fair value of the Company’s common share purchase warrant liability was calculated using a Black-Scholes valuation model and is classified as Level 3 in the fair value hierarchy. The fair values at the time of exercise of the warrants were estimated using the following valuation assumptions: expected volatilities of 16.7%, risk-free interest rates of 1.8%, and expected life of 0.01 -0.03 years.The following is a rollforward of the fair value of the warrants (in thousands):
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