Stockholders' Deficit (Tables)

9 Months Ended

Sep. 30, 2022

Equity [Abstract]

Summary of Stock Based Compensation Recognized in Consolidated Statement of Operations

Stock-based compensation expense (including employee stock purchase plan expense) recorded in the accompanying condensed consolidated statements of operations for three and nine months ended September 30, 2022 and 2021 was as follows:

	Three Months Ended September 30,				Nine Months Ended September 30,
	2022		2021		2022		2021
Selling, general and administrative	$	115,912	$	293,916	$	488,394	$	934,446
Research and development		55,858		35,566		163,276		83,108
Cost of product and product-related services revenue		2,977		9,411		22,216		24,764
	$	174,747	$	338,893	$	673,886	$	1,042,318

Summary of Stock Option Plans Activity Including Inducement Award Activity

A summary of the Company’s stock option activity (including inducement award activity) for the nine months ended September 30, 2022 is as follows:

	Number of Shares			Weighted- Average Exercise Price Per Share		Weighted- Average Remaining Contractual Life (Years)		Aggregate Intrinsic Value
Balance at December 31, 2021		559,336		$	13.93		8.2	$	30,267
Granted		476,000			1.08
Exercised		-			-
Forfeited		(58,922	)		5.57
Expired/Cancelled		(39,576	)		31.15
Balance at September 30, 2022		936,838		$	7.20		8.7	$	-
Exercisable at September 30, 2022		399,745		$	13.75		7.6	$	-

Summary of Restricted Stock Unit ("RSU") Award Activity

The following table summarizes restricted stock unit (“RSU”) award activity for the nine months ended September 30, 2022:

	Number of Shares			Weighted- Average Grant Date Fair Value Per Share
Balance at December 31, 2021		31,177		$	6.93
Granted		5,000			0.69
Released		(11,177	)		10.02
Forfeited		(7,500	)		5.20
Balance at September 30, 2022		17,500		$	3.91
Vested and unissued at September 30, 2022		2,500		$	5.20