XML 89 R77.htm IDEA: XBRL DOCUMENT v3.19.1
Stock Options and Warrants (Details 1) - $ / shares
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Warrant [Member]    
Options    
Beginning balance 1,704,102 840,276
Granted during the period 535,600 971,611
Exercised during the period  
Terminated/Expired during the period (107,785)
Ending balance 2,239,702 1,704,102
Exercisable 2,239,702  
Weighted average exercise price    
Beginning Balance $ 2.66 $ 5.13
Granted during the period 1.45 2.61
Exercised during the period  
Terminated/Expired during the period 3.62
Ending Balance 3.10 $ 2.66
Exercisable $ 3.10  
Weighted Average Remaining Contractual Term in Years    
Beginning Balance 4 years 15 days 4 years 4 days
Granted 4 years 4 months 6 days 4 years 5 months 1 day
Ending Balance 3 years 4 months 6 days  
Exercisable 3 years 4 months 6 days  
Stock Option [Member]    
Options    
Beginning balance 1,048,627 636,342
Granted during the period 88,000 695,000
Exercised during the period
Terminated/Expired during the period (298,478) (282,715)
Ending balance 838,149 1,048,627
Exercisable 598,149  
Weighted average exercise price    
Beginning Balance $ 3.20 $ 7.01
Granted during the period 1.56 1.45
Exercised during the period
Terminated/Expired during the period 3.04 7.66
Ending Balance 3.08 $ 3.20
Exercisable $ 3.73