Quarterly report pursuant to Section 13 or 15(d)

Note 2 - Operations and Management Plans (Details Textual)

v3.21.2
Note 2 - Operations and Management Plans (Details Textual) - USD ($)
$ / shares in Units, $ in Thousands
 1 Months Ended 3 Months Ended 9 Months Ended
Jul. 31, 2021
Aug. 31, 2021
Aug. 31, 2020
Aug. 31, 2021
Aug. 31, 2020
Jul. 06, 2021
Jan. 19, 2021
Nov. 30, 2020
Net Income (Loss) Attributable to Parent, Total   $ (1,841) $ (566) $ (75) $ (10,912)      
Retained Earnings (Accumulated Deficit), Ending Balance   (50,290)   (50,290)       $ (50,215)
Stock Issued During Period, Shares, New Issues (in shares) 2,875,000              
Shares Issued, Price Per Share (in dollars per share) $ 21.00              
Stock Offering, Underwriting Discounts, Commissions, and Offering Expenses $ 4,400              
Proceeds from Issuance of Common Stock, Net $ 56,000     56,753 $ 0      
Over-Allotment Option [Member]                
Stock Issued During Period, Shares, New Issues (in shares) 375,000              
Revolving Credit Facility [Member]                
Line of Credit Facility, Maximum Borrowing Capacity           $ 7,500 $ 5,000  
Equipment Financing Line of Credit [Member]                
Line of Credit Facility, Maximum Borrowing Capacity   $ 1,500   $ 1,500     $ 1,500