XML 41 R31.htm IDEA: XBRL DOCUMENT v3.8.0.1
Stockholders' Equity - Common Stock (Details) - USD ($)
 3 Months Ended
Nov. 28, 2017
May 31, 2017
Apr. 11, 2017
Dec. 22, 2016
Mar. 31, 2018
Mar. 31, 2017
Dec. 31, 2017
Common Stock [Abstract]              
Common stock issued (in shares) 10,000            
Proceeds from sale of common stock, net         $ (150,000) $ 1,435,000  
Common stock, par value (in dollars per share)         $ 0.001   $ 0.001
Common Stock [Member]              
Common Stock [Abstract]              
Common stock issued (in shares) 10,000            
Share issued, price per share     $ 1.10        
Common Stock [Member] | Maxim Group LLC [Member]              
Common Stock [Abstract]              
Common stock issued (in shares)   849,000 8,600,000        
Proceeds from sale of common stock, net   $ 800,000 $ 8,700,000        
Common stock, par value (in dollars per share)     $ 0.001        
Share issued, price per share   $ 1.10 $ 1.0395        
Closing of offering date     Apr. 17, 2017        
Number of days granted as option to purchase additional shares of common stock to underwriter     45 days        
Additional shares of common stock     944,000        
Common Stock [Member] | Lincoln Park Capital Fund, LLC [Member]              
Common Stock [Abstract]              
Common stock issued, value       $ 20,000,000      
Period exercisable from the date of issuance       30 months      
Common Stock [Member] | Lincoln Park Capital Fund, LLC [Member] | Purchase Agreement [Member]              
Common Stock [Abstract]              
Common stock issued, value       $ 200,000      
Common stock issued (in shares)       1,994,717      
Proceeds from sale of common stock, net       $ 1,700,000      
Common Stock [Member] | Securities Purchase Agreement [Member] | Lincoln Park Capital Fund, LLC [Member]              
Common Stock [Abstract]              
Common stock issued (in shares)       127,419      
Trading Volume of Common Shares       0      
Common stock issued (in shares)       382,258      
Common Stock [Member] | Maximum [Member] | Lincoln Park Capital Fund, LLC [Member] | Purchase Agreement [Member]              
Common Stock [Abstract]              
Floor price of per share       $ 0.50      
Common Stock [Member] | Maximum [Member] | Single Regular Purchase [Member] | Lincoln Park Capital Fund, LLC [Member]              
Common Stock [Abstract]              
Common stock issued (in shares)       100,000      
Common Stock [Member] | Minimum [Member] | Lincoln Park Capital Fund, LLC [Member]              
Common Stock [Abstract]              
Beneficial ownership percentage of common stock outstanding       9.99%      
Common Stock [Member] | Minimum [Member] | Single Regular Purchase [Member] | Lincoln Park Capital Fund, LLC [Member]              
Common Stock [Abstract]              
Common stock issued, value       $ 1,000,000