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LOANS AND BORROWINGS - Narrative (Details) $ / shares in Units, $ in Thousands			3 Months Ended				9 Months Ended
	Aug. 04, 2016 $ / shares	Jul. 24, 2012 CAD ($) shares	Sep. 30, 2020 USD ($)	Sep. 30, 2019 USD ($)	Sep. 30, 2017 USD ($)	Sep. 30, 2017 CAD ($)	Sep. 30, 2020 USD ($)	Sep. 30, 2019 USD ($)	Oct. 06, 2020 CAD ($)	Jul. 14, 2020 CAD ($)	Aug. 03, 2016 $ / shares
Debt Instrument [Line Items]
Public offering of floating-rate convertible unsecured subordinated debentures (in shares) | shares		22,000
Price per debenture issuance		$ 1,000
Proceeds from issuance of debt		$ 21,550,000
Conversion price per share | $ / shares	$ 4.15										$ 15.00
Debentures held by the debentureholders					20.00%	20.00%
Principal amount purchased plus accrued and unpaid interest	101.00%				100.00%	100.00%				101.00%
Consecutive trading days		20 days					20 days
Price of aggregate principal amount redeemed										$ 10,430,000
Convertible debentures										$ 20,860,000
Average trading price is not less than percent of the conversion price		125.00%
Debt (in CAD)		$ 1,000
Volume-weighted average trading price of the common shares		95.00%
Change in value of Convertible Debentures			$ (153)	$ (940)			$ (153)	$ (447)
Subsequent Event
Debt Instrument [Line Items]
Principal amount purchased plus accrued and unpaid interest									101.00%
Price of aggregate principal amount redeemed									$ 10,430,000
Unsecured Debt
Debt Instrument [Line Items]
Change in value of Convertible Debentures			$ (150)	$ 940			$ 150	$ 450
Minimum
Debt Instrument [Line Items]
Stated interest rate		8.50%
Obligation to repay debenture		40 days
Maximum
Debt Instrument [Line Items]
Stated interest rate		13.50%
Obligation to repay debenture		60 days
Convertible Debentures | Convertible Debt
Debt Instrument [Line Items]
Number of days notice to redeem debentures	30 days
Principal amount redeemed					$ 870	$ 1,130,000

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