Stock Options (Tables)

6 Months Ended

Jun. 30, 2019

Share-based Payment Arrangement [Abstract]

Summary of stock option activity

The following table summarizes stock option activity for the period ended June 30, 2019:

	Number of Options		Weighted Average Exercise Price ($)		Weighted Average Remaining Contractual Term (years)		Aggregate Intrinsic Value ($)
Outstanding at December 31, 2018		317,500		3.41
Outstanding at June 30, 2019		317,500		3.41		7.18		16,625
Exercisable at June 30, 2019		317,500		3.41		7.18		16,625

Summary of consolidated statement of operations

Stock-based compensation has been included in the unaudited consolidated statement of operations as follows:

	Three Months Ended June 30,				Six Months Ended June 30,
	2019		2018		2019		2018
Research and development	$	–	$	7,091	$	–	$	27,966
General and administrative		–		40,558		832		142,180
Total	$	–	$	47,649	$	832	$	170,146

Summary of stock options outstanding and exercisable

The following table summarizes information about stock options outstanding and exercisable at June 30, 2019:

	Stock Options Outstanding						Stock Options Exercisable
Range of Exercise Prices	Number of Shares Subject to Outstanding Options		Weighted Average Contractual Life (years)		Weighted Average Exercise Price		Number of Shares Subject To Options Exercise		Weighted Average Remaining Contractual Life (Years)		Weighted Average Exercise Price
1.05		55,000		4.76		1.05		55,000		4.76		1.05
1.25		7,500		5.96		1.25		7,500		5.96		1.25
1.34		7,500		6.01		1.34		7,500		6.01		1.34
1.70		7,500		6.30		1.70		7,500		6.30		1.70
2.28		7,500		7.06		2.28		7,500		7.06		2.28
4.20		232,500		7.87		4.20		232,500		7.87		4.20
Total		317,500		7.18	$	3.41		317,500		7.18	$	3.41