XML 42 R30.htm IDEA: XBRL DOCUMENT v3.8.0.1
Stockholder's Equity (Tables)
3 Months Ended
Mar. 31, 2018
Schedule of Balance of Stockholder's Equity

    Common Stock     Paid-in     Accumulated    

Total

Stockholders’

   

Non-controlling

interest in consolidated

    Total  
    Shares     Amount     Capital     Deficit     Equity     Entities     Equity  
Balance, December 31, 2017     4,889,745     $ 489     $ 23,223,435     $ (18,090,961 )   $ 5,132,963     $ 15,585     $ 5,148,548  
                                                         
Issuance of common stock from warrant exercise for cash     126,000       13       680,387       -       680,400       -       680,400  
Issuance of common stock for services by third parties     12,525       1       60,931       -       60,932       -       60,932  
Issuance of common stock for services by employees     16,500       1       90,509       -       90,510       -       90,510  
Stock-based compensation     -       -       174,744       -       174,744       -       174,744  
Net profit attributable to noncontrolling interests     -       -       -       -       -       593       593  
Net loss attributable to common shareholders     -       -       -       (1,319,117 )     (1,319,117 )     -       (1,319,117 )
Balance, March 31, 2018     5,044,770     $ 504     $ 24,230,006     $ (19,410,078 )   $ 4,836,610     $ 16,178     $ 4,836,610  

Summary of Stock Option Activity

A summary of all stock option activity at and for the three months ended March 31, 2018 is presented below:

 

    # of Options     Weighted-
Average
Exercise Price
 
Outstanding at December 31, 2017     369,006     $ 6.47  
Options granted     355,000     $ 3.97  
Options exercised     -          
Options canceled     -          
Outstanding at March 31, 2018     724,006     $ 4.84  
                 
Exercisable at March 31, 2018     198,448     $ 6.55  

Schedule of Weighted-average Assumptions Used in Black-scholes Valuation Method

The following weighted-average assumptions were used in the Black-Scholes valuation model for options granted during the three months ended March 31, 2018:

 

Risk-free interest rate     2.36 %
Expected term (in years)     6.11  
Dividend yield     -  
Expected volatility     75 %

Warrant [Member]  
Schedule of Weighted-average Assumptions Used in Black-scholes Valuation Method

The estimated fair value of the warrants at issuance was $988,923, based on a combination of closing market trading price on the date of issuance for the public offering warrants, and the Black-Scholes option-pricing model using the weighted-average assumptions below:

 

Volatility     75 %
Risk-free interest rate     2.475 %
Expected term (in years)     4.5  
Expected dividend yield     -  
Fair value of common stock   $ 4.74  

Summary of Warrant Activity

A summary of activity in warrants is as follows:

 

    Warrants     Weighted
Average
Remaining
Life
    Weighted
Average
Exercise
Price
    Aggregate
Intrinsic
Value
 
                         
Outstanding at December 31, 2017     2,623,077       3.62 years     $ 5.96     $ 54,880  
                                 
Three months ended March 31, 2018:                                
Granted     217,298       4.5 years     $ 5.40     $ 347,677  
Exercised     (126,000 )     4.5 years     $ 5.40       -  
Forfeited and cancelled     -       -     $ -       -  
                                 
Outstanding at March 31, 2018     2,714,375       3.67 years     $ 5.94     $ 2,877,238