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CONVERTIBLE NOTES (Narrative) (Details) - USD ($)
 1 Months Ended 3 Months Ended 9 Months Ended 12 Months Ended
Jul. 01, 2019
Jan. 02, 2019
Jul. 03, 2018
Jan. 02, 2018
Jul. 02, 2020
Jan. 02, 2020
Jun. 30, 2017
May 31, 2020
May 31, 2019
May 31, 2020
May 31, 2019
Aug. 31, 2019
Disclosure of detailed information about borrowings [line items]                        
Shares issued for interest on convertible note (Shares)                   517,468 545,721  
Shares issued for interest on convertible note                   $ 687,000 $ 687,000  
Gain (Loss) on warrant derivative                   3,048,000 (738,000)  
Gain (loss) of fair value of financial instruments               $ 49,000 $ 1,589,000 $ 3,112,000 (839,000)  
Convertible Notes [Member]                        
Disclosure of detailed information about borrowings [line items]                        
Borrowings   $ 19,990,000 $ 19,990,000 $ 19,990,000 $ 19,990,000 $ 19,990,000 $ 20,000,000          
Borrowings, interest rate             6 7/8%          
Maximum number of common shares             2,954,278          
Description of conversion of debt to equity                   The initial conversion rate of the Convertible Notes will be 1,001.1112 common shares per $1,000 principal amount of Convertible Notes, which is equivalent to an initial conversion price of approximately $0.9989 per common share, representing a conversion premium of approximately 15% above the NYSE American closing sale price for the Company's Common Shares of $0.8686 per share on June 27, 2017. After giving effect to the December 13, 2018 share consolidation, the conversion rate is 100.1111 per US$1,000 which is equivalent to a conversion price of approximately $9.989 per common share.    
Convertible Note Derivatives             $ 5,381,000 $ 125,000   $ 125,000    
Transaction costs             1,049,000         $ 79,000
Value attributed to debt portion of convertible notes             $ 13,570,000          
Shares issued for interest on convertible note (Shares)   545,721 757,924 244,063 526,471 517,468            
Shares issued for interest on convertible note $ 687,000 $ 687,160 $ 724,000 $ 691,000 $ 687,000 $ 687,160            
Gain (loss) of fair value of financial instruments                   $ 63,000 $ (101,000)