STOCKHOLDERS' EQUITY (DEFICIT) - AT THE MARKET OFFERING (Details) - USD ($) $ / shares in Units, $ in Thousands	6 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Sep. 30, 2021	Mar. 16, 2021
Sale of Stock [Line Items]
Common stock, par value (in dollars per share)	$ 0.50		$ 0.50
Stock issuance costs, commissions, fees, and ATM-related professional services	$ 0	$ 23
At The Market Offering
Sale of Stock [Line Items]
Common stock, par value (in dollars per share)				$ 0.50
Sale of stock, maximum aggregate sales price	$ 25,000
Common shares sold (in shares)	509,467
Proceeds from sale of common stock	$ 2,356
At The Market Offering | Commissions And Fees
Sale of Stock [Line Items]
Stock issuance costs, commissions, fees, and ATM-related professional services	75
At The Market Offering | At The Market Related Professional Services
Sale of Stock [Line Items]
Stock issuance costs, commissions, fees, and ATM-related professional services	$ 22