Quarterly report pursuant to Section 13 or 15(d)

Stock based compensation, options and warrants (Schedule of Award Activity) (Details)

v3.7.0.1
Stock based compensation, options and warrants (Schedule of Award Activity) (Details) - USD ($)
1 Months Ended 6 Months Ended
Mar. 31, 2017
Jun. 30, 2017
Jun. 30, 2016
Nonqualified [Member]      
Shares Underlying Options      
Outstanding, beginning   527,003  
Granted 900,000 900,000  
Exercised    
Forfeited   (154,074)  
Outstanding, ending   1,272,929  
Exercisable   372,929  
Weighted Average Exercise Price      
Outstanding, beginning   $ 13.36  
Granted $ 3.50 3.50  
Exercised    
Forfeited   19.68  
Outstanding, ending   5.58  
Exercisable   $ 10.59  
Weighted Average Remaining Contractual Term      
Outstanding   2 years 3 months 19 days  
Exercisable   4 months 24 days  
Aggregate Intrinsic Value      
Outstanding   $ 526,500  
Exercisable   $ 4,500  
Stock Incentive Plan [Member]      
Shares Underlying Options      
Outstanding, beginning   566,747  
Granted   20,000  
Exercised    
Forfeited   (495,414) (25,445)
Outstanding, ending   91,333  
Exercisable   59,000  
Weighted Average Exercise Price      
Outstanding, beginning   $ 20.46  
Granted   4.02  
Exercised    
Forfeited   22.98  
Outstanding, ending   3.16  
Exercisable   $ 2.93  
Weighted Average Remaining Contractual Term      
Outstanding   7 years 3 months 19 days  
Exercisable   6 years 1 month 6 days  
Aggregate Intrinsic Value      
Outstanding   $ 84,290  
Exercisable   $ 68,070