Annual report pursuant to Section 13 and 15(d)

Stockholders' Equity (Details Narrative)

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Stockholders' Equity (Details Narrative) - USD ($)
 1 Months Ended 3 Months Ended 12 Months Ended
Mar. 31, 2018
May 31, 2015
Dec. 31, 2017
Jun. 30, 2018
Jun. 30, 2017
Dec. 29, 2017
Dec. 15, 2016
May 22, 2015
Number of additional shares authorized             310,000,000  
Common stock, authorized       45,000,000 45,000,000   300,000,000  
Preferred stock, par value (in dollars per share)       $ 0.001 $ 0.001   $ 0.001  
Preferred stock, authorized       5,000,000 5,000,000   10,000,000  
Number of blank check preferred stock authorized             50,000,000  
Blank check common stock, authorized             45,000,000  
Blank check preferred stock, authorized             5,000,000  
Preferred stock, issued       0 0      
Preferred stock, outstanding       0 0      
Granted of fair value (in shares)              
Stock based compensation       $ 5,490,517 $ 4,631,115      
Number of shares issued (in shares)     2,640,819          
Shares issued price per share (in dollars per share)         $ 5 $ 5.50    
Proceeds from issuance of shares     $ 14,500,000          
Stock commissions and expenses     $ 1,300,000          
Terms of Award      

(generally vesting either ratably over the first four years or on a tier basis of 50% on the second anniversary of the effective date and 25% on the third and fourth anniversary dates).

        
Weighted Average Exercise Price       $ 6.61 $ 4.83      
Investor [Member] | Private Placement Offering (the "May 2017 Offering") [Member]                
Number of shares issued (in shares)       542,450        
Placement Agent Warrants [Member]                
Number of shares issued (in shares)       154,177        
Fair value of the shares issued       $ 645,757        
Restricted Stock Award (RSAs) and Restricted Stock Units (RSUs) [Member]                
Granted of fair value (in shares)       1,035,994        
Unrecognized stock based compensation expense       $ 5,000,000        
Accrued stock compensation expenses       395,539 $ 399,157      
Stock based compensation expense       $ 3,784,554 $ 3,223,398      
Weighted Average Exercise Price       $ 6.61 $ 4.83      
Total vested fair value       $ 3,800,000 $ 3,700,000      
Performance Shares [Member]                
Granted of fair value (in shares) 139,500              
Unrecognized stock based compensation expense       $ 6        
Award vesting percent on first anniversary (in percent)       100.00%        
Stock based compensation expense       $ 30,870        
Award exercises in period       15,000        
Award forfeitures in period       124,500        
Award nonvested (in shares)       15,000        
2015 Stock Option Plan [Member]                
Unrecognized stock based compensation expense       $ 2,842,778        
Total intrinsic value of options exercisable       $ 0 0      
Unrecognized stock based compensation expense amortized period       2 years 8 months 8 days        
Stock based compensation       $ 1,675,093 $ 27,932      
Number of stock authorized               1,200,000
Terms of Award      

Options granted under the 2015 Plan vest as determined by the Company’s board of directors and expire over varying terms, but not more than ten years from the date of grant. In the case of an Incentive Stock Option that is granted to a 10% shareholder on the date of grant, such Option shall not be exercisable after the expiration of five years from the date of grant.

        
Four non-employee directors [Member] | 2015 Stock Option Plan [Member]                
Number of shares issued (in shares)   160,000            
One investor [Member]                
Shares issued price per share (in dollars per share)         $ 4.40