STOCK ISSUED UNDER MASTER FINANCING AGREEMENTS AND WARRANTS - Valuation Assumptions (Details)	12 Months Ended
	Dec. 31, 2021 USD ($)	Dec. 31, 2020 USD ($)	Oct. 19, 2021 USD ($)	May 14, 2021 USD ($) shares	Apr. 01, 2021 USD ($) shares
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Changes in fair value of warrant liabilities	$ 1,143,809	$ 0
Redeemable Convertible Preferred Stock, Series A
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Expected life (in years)			4 years 9 months 29 days		4 years 9 months 29 days
Fair value	$ 0		$ 1,628,311		$ 631,897
Change in expected life (in years)	0 days
Changes in fair value of warrant liabilities	$ 996,414
Redeemable Convertible Preferred Stock, Series A | Expected volatility
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Warrants, measurement input			1.176		1.002
Changes in Fair Value Inputs	17.40%
Redeemable Convertible Preferred Stock, Series A | Risk-free interest rate
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Warrants, measurement input			0.012		0.009
Changes in Fair Value Inputs	0.30%
Redeemable Convertible Preferred Stock, Series A | Expected dividend yield
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Warrants, measurement input			0.0000		0.0000
Changes in Fair Value Inputs	0.00%
Redeemable Convertible Preferred Stock, Series B
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Expected life (in years)			4 years 9 months 18 days	4 years 9 months 18 days
Fair value	$ 0		$ 295,970	$ 148,575
Change in expected life (in years)	0 days
Changes in fair value of warrant liabilities	$ 147,395
Redeemable Convertible Preferred Stock, Series B | Expected volatility
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Warrants, measurement input			1.176	1.002
Changes in Fair Value Inputs	17.40%
Redeemable Convertible Preferred Stock, Series B | Risk-free interest rate
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Warrants, measurement input			0.012	0.009
Changes in Fair Value Inputs	0.30%
Redeemable Convertible Preferred Stock, Series B | Expected dividend yield
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Warrants, measurement input			0.0000	0.0000
Changes in Fair Value Inputs	0.00%
B. Riley Securities, Inc. | Private Placement
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Expected life (in years)				5 years
B. Riley Securities, Inc. | Redeemable Convertible Preferred Stock, Series A | Private Placement
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Warrants issued during period (in shares) | shares					97,920
Expected life (in years)					5 years
B. Riley Securities, Inc. | Redeemable Convertible Preferred Stock, Series B | Private Placement
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Warrants issued during period (in shares) | shares				18,170
Expected life (in years)				5 years