REDEEMABLE CONVERTIBLE PREFERRED STOCK (Details) - $ / shares		9 Months Ended
	Aug. 16, 2019	Sep. 30, 2021	Nov. 30, 2020
Class of Stock [Line Items]
Preferred stock, authorized (in shares)		10,000,000
Preferred stock, par value (in dollars per share)		$ 0.01
Shares issuable per warrants (in shares)			3,109,378
50-day trading volume on Nasdaq stock market (in shares)		50,000
Average trading volume period		50 days
Series 1 redeemable convertible non-voting preferred stock
Class of Stock [Line Items]
Preferred stock, authorized (in shares)		1,517,500
Preferred stock, outstanding (in shares)		452,000
Preferred stock, issued (in shares)		452,000
Shares issuable per warrants (in shares)		10
Series 2 Preferred Stock
Class of Stock [Line Items]
Preferred stock, outstanding (in shares)		0
Preferred stock, issued (in shares)		0
Series 2 Preferred Stock | Private Placement
Class of Stock [Line Items]
Number of shares of common stock sold in offering (in shares)	350,000	350,000
Price per share (in dollars per share)	$ 100.00
Series 3 Preferred Stock
Class of Stock [Line Items]
Preferred stock, outstanding (in shares)		0
Preferred stock, issued (in shares)		0
Closing price of common stock (in dollars per share)		$ 35.00
Closing price of common stock threshold period		180 days
Series 3 Preferred Stock | Private Placement
Class of Stock [Line Items]
Number of shares of common stock sold in offering (in shares)	250,000	250,000
Series 1 and 2 Preferred Stock
Class of Stock [Line Items]
Price per share (in dollars per share)		$ 100.00
Closing price of common stock (in dollars per share)		$ 25.00
Closing price of common stock threshold period		180 days
Preferred Stock | Private Placement
Class of Stock [Line Items]
Price per share (in dollars per share)	$ 140.00