BASIS OF PRESENTATION AND SUMMARY OF ACCOUNTING POLICIES (Details)							3 Months Ended				6 Months Ended
	May 01, 2020 USD ($)	Apr. 01, 2020 USD ($) shares	Mar. 31, 2020 USD ($) $ / shares	Dec. 17, 2019 USD ($) shares	Nov. 15, 2019 USD ($) $ / shares shares	Oct. 31, 2019 $ / shares	Mar. 31, 2020 USD ($) $ / shares shares	Dec. 31, 2019 USD ($)	Mar. 31, 2019 USD ($)	Dec. 31, 2018 USD ($) $ / shares	Mar. 31, 2020 USD ($) $ / shares shares	Mar. 31, 2019 USD ($)	Sep. 30, 2019 USD ($) $ / shares
Liquidity And Managements Plan [Line items]
Accumulated deficit			$ 262,423,267				$ 262,423,267				$ 262,423,267		$ 256,805,589
Net loss			(5,617,678)				(2,950,905)	$ (2,662,741)	$ (2,686,757)	$ (3,234,320)	(5,613,646)	$ (5,921,077)
Negative operating cash flow											5,151,404	$ 3,802,025
Cash and cash equivalents			8,662,889				8,662,889				8,662,889		$ 558,988
Working capital			$ 8,129,189				$ 8,129,189				$ 8,129,189
Reverse stock split of its common stock						0.025
Common Stock, Par Or Stated Value Per Share | $ / shares			$ 0.001			$ 0.001	$ 0.001				$ 0.001		$ 0.001
PPP Loan | Subsequent event
Liquidity And Managements Plan [Line items]
Loan amount received	$ 847,000
Offering
Liquidity And Managements Plan [Line items]
Common stock issued in private placement, net of offering costs (in shares) | shares				2,285,000	2,285,000
Number of common stock called by warrants | shares				2,627,750	2,285,000
Number of common shares that each warrant has right to purchase | shares					1
Number of shares per warrant | shares					1
Exercise price of warrants (in dollars per share) | $ / shares					$ 5.25					$ 5.60
Public offering price for each share together with warrant | $ / shares					$ 5.25
Gross proceeds of offering before underwriter discounts, commissions and other offering expenses				$ 12,000,000	$ 12,000,000
Net proceeds of offering after underwriter discounts, commissions and other offering expenses					$ 10,500,000
Additional number of common stock called by warrants | shares				342,750	342,750
Warrants exercisable expiration period					45 days
Number of warrants exercised | shares							566,950				566,950
Proceeds from exercise of warrants							$ 2,770,000				$ 2,770,000
Offering | Subsequent event
Liquidity And Managements Plan [Line items]
Number of warrants exercised | shares		596,400
Proceeds from exercise of warrants		$ 2,910,000