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Net Income (Loss) Per Share (Details) - USD ($)
12 Months Ended
Dec. 31, 2017
Dec. 31, 2016
Numerator:    
Net income (loss) $ (1,430,731) $ 12,147,088
Convertible note interest 117,421
Adjusted diluted net income $ (1,430,731) $ 12,264,509
Denominator: Weighted average common shares outstanding used in computing net income (loss) per share:    
Basic 6,292,898 5,793,245
Effect of dilutive stock options and convertible notes payable 1,026,576
Diluted 6,292,898 6,819,821
Net income (loss) per share applicable to common stockholders:    
Basic $ (0.23) $ 2.10
Diluted $ (0.23) $ 1.80