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Fair Value Measurement
3 Months Ended
Sep. 30, 2018
Fair Value Disclosures [Abstract]  
Fair Value Disclosures [Text Block]
Note 11 - Fair Value Measurement
 
Fair value measurements
 
 
At September 30, 2018 and June 30, 2018 the estimated fair values of the liabilities measured on a recurring basis are as follows:
 
  
Fair Value Measurements at
 
  
September 30, 2018:
 
  
(Level 1)
  
(Level 2)
  
(Level 3)
 
             
Derivative liability - warrants $-  $-  $122,541 
 
 
 
Fair Value Measurements at
 
 
 
June 30, 2018:
 
 
 
(Level 1)
 
 
(Level 2)
 
 
(Level 3)
 
 
 
 
 
 
 
 
 
 
 
Derivative liability - warrants
 
$-
 
 
$-
 
 
$298,092
 
     
In conjunction with the Company’s registered direct offerings of Units, consisting of the Company’s common stock and warrants, on September 12, 2013 and January 24, 2014, the Company
issued an aggregate of
5,425,363 warrants, of which 2,479,935 
and 5,290,006, are outstanding at September 30, 2018 and June 30, 2018, respectively. Additionally, the Company
issued 135,216
warrants to the placement agents of which
 76,306 
and 135,216, are also outstanding at September 30, 2018 and June 30, 2018, respectively, for a total number
of 2,556,241
and 5,425,222 warrants outstanding and issued as of September 30, 2018 and June 30, 2018, respectively, pursuant to the aforesaid registered direct
offerings.
 
The Company accounts for stock purchase warrants as either equity instruments or derivative liabilities depending on the specific terms of the warrant agreements. Under applicable accounting guidance, stock warrants must be accounted for as derivative financial instruments if the warrants contain full-ratchet anti-dilution provisions, which preclude the warrants from being considered indexed to its own stock. The warrants described above contained a full-ratchet anti-dilution feature and are thus classified as a derivative liability.
 
The Company used a lattice model to calculate the fair value of the derivative warrants based on a probability weighted discounted cash flow model. This model is based on future projections of the various potential outcomes. The features that were analyzed and incorporated into the model included the exercise and full reset features.
  
The Warrants were valued as of September 30, 2018 and June 30, 2018 with the following assumptions:
 
 
-
The 5-year warrants issued on 9/12/13 and 1/24/14 included Investor and Placement Agent Warrants with an exercise price of $5.25 and $6.05 (subject to adjustments-full ratchet reset).
 
 
-
The stock price would fluctuate with the Company projected volatility.
 
 
-
The Holder would exercise the warrant as they become exercisable (effective registration at issuance) at target prices of the higher of 
2 times
 the projected exercise/reset price or 
2 times
 the stock price.
  
 
-
The next capital raise would fluctuate with an annual volatility. The projected volatility curve was based on historical volatilities of the Company for the valuation periods. The projected annual volatility for the valuation dates are:
 
1 Year
 
 
 
9/30/18
 
 
64
%
6/30/18
 
 
56
%
 
The primary factors driving the economic value of options are stock price; stock volatility; reset events and exercise behavior. Projections of these variables over the remaining term of the warrant are either derived or based on industry averages. Based on the above, a probability was assigned to each scenario for each future period, and the appropriate derivative value was determined for each scenario. The option value was then probability weighted and discounted to the present.
 
The following tables present the activity for liabilities measured at estimated fair value using unobservable inputs for the three months ended September 30, 2018:
 
Fair Value Measurement
    
              
  
Fair Value Measurement
 
  
Using Significant Unobservable Inputs
 
  
Derivative
Liability-
Warrant
 
Beginning balance at July 1, 2018 $298,092 
Additions during the year  - 
Change in fair value  (175,551)
Transfer in and out of Level 3  - 
Balance at September 30, 2018 $122,541