Convertible Preferred Stock and Stockholders' Equity (Details)

v3.22.2.2

Convertible Preferred Stock and Stockholders' Equity (Details)								1 Months Ended				3 Months Ended				9 Months Ended		12 Months Ended
	Sep. 19, 2022 shares	Sep. 13, 2022 USD ($)	Aug. 15, 2022 USD ($) $ / shares shares	Dec. 30, 2021 USD ($)	Sep. 13, 2021 USD ($) D shares	Jun. 04, 2021 USD ($) shares	Apr. 18, 2019 USD ($) $ / shares shares	Aug. 31, 2022 shares	Dec. 31, 2021 USD ($) $ / shares shares	Jun. 30, 2021 USD ($) $ / shares shares	Jan. 31, 2021 USD ($) $ / shares shares	Sep. 30, 2022 USD ($) $ / shares shares	Sep. 30, 2021 USD ($) shares	Jun. 30, 2021 $ / shares shares	Mar. 31, 2021 USD ($) shares	Sep. 30, 2022 USD ($) $ / shares shares	Sep. 30, 2021 USD ($) shares	Dec. 31, 2021 $ / shares shares	Aug. 24, 2022 USD ($)	Aug. 19, 2022 shares	Jun. 21, 2022 shares
Convertible Preferred Stock and Stockholders' Equity
Dividend rate																8.00%		8.00%
Number of shares authorized									1,250,000			0				0		1,250,000
Preferred stock outstanding									0			0				0		0
Number of stock released																204,384
Stock-based compensation | $												$ 63,000				$ 191,000
Shares unvested												290,625				290,625
Gross proceeds | $			$ 3,000,000
Registered direct offering, net of issuance costs | $													$ 9,026,000
Change in fair value of warrant liability | $												$ 274,000	$ 0			$ 274,000	$ 0
Common Shares [Member]
Convertible Preferred Stock and Stockholders' Equity
Issuance of common stock upon warrant exchanged													19,000	1,360,244	2,086,251
Registered direct offering, net of issuance costs | $													$ 1,000
Aggregate shares sold													2,500,000
Common Shares [Member] | Warrant
Convertible Preferred Stock and Stockholders' Equity
Share Price | $ / shares										$ 4.50				$ 4.50
Number of common stock shares called by warrants issued										1,000,000				1,000,000
Exercise price of warrants | $ / shares										$ 4.46				$ 4.46
Warrant term										5 years				5 years
Gross proceeds | $										$ 2,300,000
January 2021 | Warrant
Convertible Preferred Stock and Stockholders' Equity
Share Price | $ / shares											$ 3.85
Number of common stock shares called by warrants issued											1,221,675
Exercise price of warrants | $ / shares											$ 4.20
Warrant term											5 years
Proceeds from warrant exercises | $											$ 2,900,000
Vesting upon achievement of first milestone
Convertible Preferred Stock and Stockholders' Equity
Market capitalization | $					$ 75,000,000														$ 50,000,000
Vesting upon achievement of second milestone
Convertible Preferred Stock and Stockholders' Equity
Market capitalization | $					100,000,000														75,000,000
Vesting upon achievement of third milestone
Convertible Preferred Stock and Stockholders' Equity
Market capitalization | $					$ 150,000,000														$ 100,000,000
Restricted stock
Convertible Preferred Stock and Stockholders' Equity
Number of restricted shares granted																1,274,900
Number of stock released																284,299
Shares unvested									728,255			1,677,484				1,677,484		728,255
Unamortized compensation costs | $												$ 2,374,000				$ 2,374,000
Weighted-average period																2 years 2 months 12 days
Carve-Out Plan | Restricted stock
Convertible Preferred Stock and Stockholders' Equity
Aggregate intrinsic value | $															$ 2,000
Number of stock released															352
LTSI
Convertible Preferred Stock and Stockholders' Equity
Maximum shares authorized to issue, percentage												15.00%				15.00%
Percentage of maximum shares issued in a year												8				8
Number of restricted shares granted						0
Number of shares available for grant												1,265,525				1,265,525
LTSI | Restricted stock
Convertible Preferred Stock and Stockholders' Equity
Number of restricted shares granted												61,348	29,064			284,299	29,064
Aggregate intrinsic value | $												$ 37,000	$ 93,000			$ 294,000	$ 93,000
September 2021 Inducement Grant
Convertible Preferred Stock and Stockholders' Equity
Unrecognized tax benefits, interest on income taxes expense | $																$ 504,000
Vesting term																2 years
Number of stock released					232,500
Consecutive days to calculate volume weighted average closing price per share | D					10
September 2021 Inducement Grant | Vest monthly over a period of 36 months
Convertible Preferred Stock and Stockholders' Equity
Vesting term					36 months
Number of stock released					77,500
Value of grant | $					$ 772,000
September 2021 Inducement Grant | Vest upon the achievement of certain company milestones
Convertible Preferred Stock and Stockholders' Equity
Number of stock released					77,500
September 2021 Inducement Grant | Restricted stock
Convertible Preferred Stock and Stockholders' Equity
Number of restricted shares granted					310,000
2020 Stock Incentive Plan | Restricted stock units
Convertible Preferred Stock and Stockholders' Equity
Aggregate intrinsic value | $												$ 43,000	$ 646,000			$ 50,000	$ 646,000
Number of stock released												59,931	201,343			66,766	201,343
Shares unvested									438,462			361,627				361,627		438,462
Unamortized compensation costs | $												$ 451,000				$ 451,000
Weighted-average period																10 months 24 days
2022 | Restricted stock units
Convertible Preferred Stock and Stockholders' Equity
Number of restricted shares granted																370,000
Shares unvested												370,000				370,000
Common stock authorized for issuance under the plan																				500,000	500,000
Number of shares that each RSU represents	1
Shares issued to to employees, directors and consultants	370,000
Unamortized compensation costs | $												$ 191,000				$ 191,000
Weighted-average period																3 years 8 months 12 days
Walsh
Convertible Preferred Stock and Stockholders' Equity
Number of common stock shares called by warrants issued							12,756
Maxim
Convertible Preferred Stock and Stockholders' Equity
Number of common stock shares called by warrants issued			194,384
Exercise price of warrants | $ / shares			$ 0.997
Proceeds from warrant exercises | $			$ 91,000
Exercise price | $ / shares			$ 0.77
Dividend rate			0.00%
Volatility rate			80.30%
Risk free interest rate			2.91%
Expected term			5 years
Issuance of common stock			194,384
Maxim | Sales Agreement
Convertible Preferred Stock and Stockholders' Equity
Registered direct offering, net of issuance costs | $				$ 4,500,000
Maxim | 2022 Sales Agreement
Convertible Preferred Stock and Stockholders' Equity
Registered direct offering, net of issuance costs | $		$ 4,000,000
Lippert Heishorn Associates Inc
Convertible Preferred Stock and Stockholders' Equity
Share Price | $ / shares									$ 1.49									$ 1.49
Exercise price of warrants | $ / shares									$ 1.52									1.52
Proceeds from warrant exercises | $									$ 21,000
Dividend rate									0.00%
Volatility rate									67.00%
Risk free interest rate									1.19%
Expected term									5 years
Issuance of common stock									25,000
Design LLC
Convertible Preferred Stock and Stockholders' Equity
Exercise price of warrants | $ / shares									$ 1.52									1.52
Proceeds from warrant exercises | $									$ 12,000
Exercise price | $ / shares									$ 1.49									$ 1.49
Dividend rate									0.00%
Volatility rate									67.00%
Risk free interest rate									1.19%
Expected term									5 years
Issuance of common stock									15,000
Investor [Member]
Convertible Preferred Stock and Stockholders' Equity
Number of common stock shares called by warrants issued			2,097,022
Exercise price of warrants | $ / shares			$ 0.997
Proceeds from warrant exercises | $			$ 985,000
Exercise price | $ / shares			$ 0.77									$ 0.56				$ 0.56
Dividend rate			0.00%													0.00%
Volatility rate			80.30%													88.30%
Risk free interest rate			2.91%													4.06%
Expected term			5 years
Issuance of common stock			2,097,022
Lisa Walsh
Convertible Preferred Stock and Stockholders' Equity
Number of common stock shares called by warrants issued						187,500
Deemed dividend | $						$ 1,192,000
Series A Preferred Stock
Convertible Preferred Stock and Stockholders' Equity
Dividend rate								8.00%								8.00%
Shares issued								0				0				0
Stated value | $ / shares							$ 4.00
Floor price per share | $ / shares							30.00
Number of shares authorized								1,250,000				0				0
Preferred stock outstanding								0				0				0
Conversion price per share | $ / shares							$ 80.00
Series A Preferred Stock | Minimum
Convertible Preferred Stock and Stockholders' Equity
Proceeds net of issuance cost | $							$ 500,000
Series A Preferred Stock | Maximum
Convertible Preferred Stock and Stockholders' Equity
Proceeds net of issuance cost | $							5,000,000
Series A Preferred Stock | Walsh
Convertible Preferred Stock and Stockholders' Equity
Proceeds net of issuance cost | $							1,000,000
Fair value of embedded derivative liability | $							$ 216,000
Series A Preferred Stock | Lisa Walsh
Convertible Preferred Stock and Stockholders' Equity
Convertible preferred stock issuable						250,000
Series A Preferred Stock | Preferred Investor
Convertible Preferred Stock and Stockholders' Equity
Dividend rate							8.00%
Shares issued							250,000
Par value | $ / shares							$ 0.0001