Earnings (Loss) per Share

3 Months Ended

Mar. 31, 2019

Earnings Per Share [Abstract]

Earnings Per Share [Text Block]

(2) Earnings (Loss) per Share

Basic earnings (loss) per share is calculated by dividing net income (loss) available to common shareholders by the weighted average number of common shares outstanding during the period. Diluted earnings (loss) per share is based on the weighted average number of common shares outstanding plus, where applicable, the additional potential common shares that would have been outstanding related to dilutive options and unvested restricted stock units to the extent such shares are dilutive.

The following table sets forth the computation of basic and diluted earnings (loss) per share of common stock for the three months ended March 31, 2019 and 2018:

	Three Months Ended March 31,
	2019			2018
Basic loss per share attributable to common stock:
Numerator
Net loss	$	(3,224,472	)	$	(2,719,971	)
Denominator
Weighted avg. common shares outstanding		23,383,008			21,264,539
Basic loss per share attributable to  common stock	$	(0.14	)	$	(0.13	)
Diluted loss per share attributable to common stock:
Numerator
Net loss	$	(3,224,472	)	$	(2,719,971	)
Denominator
Weighted avg. common shares outstanding		23,383,008			21,264,539
Diluted loss per share attributable to common stock	$	(0.14	)	$	(0.13	)

The computation of diluted loss per share for the three months ended March 31, 2019 and 2018 does not include the following stock options and unvested restricted stock units to purchase shares in the computation of diluted loss per share because these instruments were antidilutive:

	March 31,
	2019		2018
Stock options		2,335,972		2,374,449
Unvested restricted stock units		682,124		203,998