Supplementary Balance Sheet Information (Tables)

12 Months Ended

Dec. 31, 2019

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Components of Property and Equipment

Property and equipment consisted of the following:

	As of December 31,
	2019			2018
Furniture and office equipment	$	775,030		$	775,030
Leasehold improvements	1,962,230			1,962,230
Laboratory equipment	744,856			677,234
	3,482,116			3,414,494
Less—accumulated depreciation and amortization	(2,604,293		)	(2,110,061		)
Property and equipment, net	$	877,823		$	1,304,433

Components of Accrued Liabilities

Accrued liabilities consisted of the following:

	As of December 31,
	2019		2018
Accrued compensation	$	1,003,383	$	780,848
Preferred stock dividend	365,255		341,015
Research agreements and clinical trials	1,686,068		319,898
Director fees	67,500		80,008
Professional fees and outside services	21,000		107,006
Patent, license and other fees	69,950		58,398
Other accrued liabilities	46,905		84,669
Total accrued liabilities	$	3,260,061	$	1,771,842