LONG-TERM DEBT - (Additional Information) (Detail) $ / shares in Units, $ in Thousands				1 Months Ended		3 Months Ended		12 Months Ended
	Jan. 29, 2021 CAD ($)	Jan. 25, 2021 USD ($) shares	Jan. 25, 2021 CAD ($) $ / shares shares	May 05, 2021 USD ($)	Jan. 31, 2021 USD ($)	Mar. 31, 2021 USD ($) Day	Mar. 31, 2020 USD ($)	Dec. 31, 2020 USD ($)	Dec. 31, 2020 CAD ($)	Mar. 31, 2021 CAD ($) Day	Feb. 12, 2021 CAD ($)
Debt Instrument [Line Items]
Amortized term						6 years
Net proceeds from sale of convertible unsecured subordinated debentures					$ 29,500
Interest expense						$ 500	$ 35
Convertible Debentures [Member]
Debt Instrument [Line Items]
Issuance of convertible debentures	$ 5,250,000		$ 35,000,000.0
Convertible debentures, maturity date		Jan. 31, 2026	Jan. 31, 2026
Convertible debentures, interest rate		6.00%	6.00%
Convertible debentures, frequency of interest payment		semi-annually	semi-annually
Convertible debentures, conversion price | $ / shares			$ 4.65
Convertible debentures, common shares issued | shares		215.0538	215.0538
Convertible debentures, principal amount			$ 1,000
Net proceeds from sale of convertible unsecured subordinated debentures		$ 29,500	37,600,000
Convertible debentures, transaction cost			$ 2,700,000
Effective interest rate			7.50%
Interest expense						$ 300
Debt instrument, redemption date		Jan. 31, 2024	Jan. 31, 2024
Canadian Dollar Advances [Member]
Debt Instrument [Line Items]
Revolving credit facility, maximum borrowing capacity										$ 5,000,000.0
Revolving credit facility, term						7 years
Cash consideration received under leasing facility								$ 2,600	$ 3,600,000
US Dollar Advances [Member]
Debt Instrument [Line Items]
Revolving credit facility, maximum borrowing capacity						$ 14,000
Revolving credit facility, term						5 years
Cash consideration received under leasing facility								$ 3,500
US Dollar Advances [Member] | Subsequent Event [Member]
Debt Instrument [Line Items]
Cash consideration received under leasing facility				$ 7,200
Amount Deposited in Restricted Cash				$ 1,400
Maximum [Member]
Debt Instrument [Line Items]
Revolving credit facility, basis spread on variable rate						4.50%
Maximum [Member] | Convertible Debentures [Member]
Debt Instrument [Line Items]
Debenture instrument redemption period		60 days	60 days
Minimum [Member]
Debt Instrument [Line Items]
Revolving credit facility, basis spread on variable rate						4.25%
Minimum [Member] | Convertible Debentures [Member]
Debt Instrument [Line Items]
Debt instrument, convertible, threshold percentage of stock price trigger		125.00%	125.00%
Debenture instrument redemption period		30 days	30 days
Revolving Credit Facility [Member] | New RBC Facility [Member]
Debt Instrument [Line Items]
Revolving credit facility, maximum borrowing capacity											$ 25,000,000.0
Revolving credit facility, maximum borrowing capacity, description						Under the RBC Facility, the Company is able to borrow up to a maximum of 90% of investment grade or insured accounts receivable plus 85% of eligible accounts receivable plus the lesser of 75% of the book value of eligible inventory and 85% of the net orderly liquidation value of eligible inventory less any reserves for potential prior ranking claims (the “Borrowing Base”).
Line of credit available borrowing capacity						$ 7,500				9,400,000
Debt instrument covenant terms						the Company is subject to a fixed charge coverage ratio (“FCCR”) covenant of 1.10:1 on a trailing twelve month basis. Additionally, if the FCCR has been below 1.10:1 for the 3 immediately preceding months, the Company is required to maintain a reserve account equal to the aggregate of one year of payments on outstanding loans on the Leasing Facilities
Revolving credit facility, aggregate excess availability										$ 5,000,000.0
Cash balance						$ 1,100
Number of consecutive business days | Day						5				5
Revolving Credit Facility [Member] | New RBC Facility [Member] | Maximum [Member]
Debt Instrument [Line Items]
Revolving credit facility, aggregate excess availability										$ 6,250,000
Revolving Credit Facility [Member] | New RBC Facility [Member] | Prime Rate [Member]
Debt Instrument [Line Items]
Revolving credit facility, basis spread on variable rate						30.00%
Revolving Credit Facility [Member] | New RBC Facility [Member] | LIBOR [Member]
Debt Instrument [Line Items]
Revolving credit facility, basis spread on variable rate						155.00%