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Description of Business and Summary of Significant Accounting Policies (Details 1) - shares
12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]      
Total 14,871,638 12,990,053 10,711,581
Options [Member]      
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]      
Total 5,906,886 3,971,583 3,013,084
Warrants [Member]      
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]      
Total 8,964,752 9,018,470 7,698,497