Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2020

Significant Accounting Policies

Antidilutive Securities Excluded from Computation of Diluted Weighted Shares Outstanding

	Year Ended
	December 31,
	2020	2019
Options	1,668,926	1,275,380
Restricted stock awards	322,756	343,493
Warrants	10,547,618	1,854,007
Total	12,539,300	3,472,880

Useful Lives of Property and Equipment

Estimated useful lives for property and equipment are as follows:

	Estimated Useful Lives
Laboratory equipment	5 – 10 years
Office and computer equipment	3 – 5 years
Leasehold improvements	Shorter of lease term or useful life