Quarterly report pursuant to Section 13 or 15(d)

Net Income (Loss) Per Share - Schedule of Antidilutive Securities Excluded from Calculations of Net Loss Per Share (Details)

v3.19.1
Net Income (Loss) Per Share - Schedule of Antidilutive Securities Excluded from Calculations of Net Loss Per Share (Details) - shares
3 Months Ended
Mar. 31, 2019
Mar. 31, 2018
Anti-dilutive securities 1,417,000 882,000
Outstanding Options to Purchase Common Stock [Member]    
Anti-dilutive securities 1,200,000 426,000
Warrants to Purchase Common Stock [Member]    
Anti-dilutive securities 217,000 209,000
Notes Payable Convertible to Common Stock [Member]    
Anti-dilutive securities 247,000