Quarterly report pursuant to Section 13 or 15(d)

Note 17 - Stockholders' Equity (Details Textual)

v3.21.2
Note 17 - Stockholders' Equity (Details Textual) - USD ($)
$ / shares in Units, $ in Thousands
 1 Months Ended 3 Months Ended 9 Months Ended
Apr. 15, 2021
Apr. 09, 2021
Apr. 08, 2020
Jul. 31, 2021
Mar. 31, 2020
Feb. 29, 2020
Aug. 31, 2021
Aug. 31, 2020
Aug. 31, 2021
Aug. 31, 2020
Nov. 30, 2020
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  
Preferred Stock, Par or Stated Value Per Share (in dollars per share)             $ 0.001   $ 0.001   $ 0.001
Conversion of Stock, Shares Converted (in shares) 4,636,649                    
Conversion of Stock, Shares Issued (in shares) 695,498                    
Share Price (in dollars per share)     $ 2.50                
Stock Issued During Period, Value, Warrants Exercised             $ 60 $ 3,515 $ 1,277 7,519  
Warrant Inducement Expense             $ (0) $ (0) $ (0) $ 845  
Convertible Noteholders [Member]                      
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share)               $ 2.50   $ 2.50  
Class of Warrant Or Right, Granted in Period (in shares)                   49,842  
Debt Instrument, Face Amount               $ 100   $ 100  
Warrants Issued to Note Holders for Increment of Accrued Interest (in shares)                   400  
Accrued Interest Satisfied By Issuance of Warrants                   $ 100  
Warrants [Member]                      
Stock Issued During Period, Shares, New Issues (in shares)         1,997,911   29,055   510,739 11,792  
Stock Issued During Period, Value, Warrants Exercised         $ 3,200   $ 100   $ 1,300 $ 20  
Stock Issued During Period, Shares, Warrants Exercised (in shares)         1,997,911   24,055   510,739 11,792  
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share)         $ 1.60 $ 2.50 $ 2.50 $ 1.80 $ 2.50 $ 1.80  
Warrant Inducement Expense         $ 800            
Warrants Issued to Consultants [Member]                      
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share)               $ 2.50   $ 2.50  
Class of Warrant Or Right, Granted in Period (in shares)           15,000       15,000  
Exchange of Notes for Series A Preferred Stock [Member]                      
Shares Issued, Price Per Share (in dollars per share)     $ 8,000.000                
Debt Conversion, Original Debt, Amount     $ 7,000                
Debt Conversion, Converted Instrument, Shares Issued (in shares)     1,391                
Debt Conversion, Converted Instrument, Amount     $ 11,600                
Adjustments to Additional Paid in Capital, Stock Issued, Issuance Costs     $ 29                
Series A Preferred Stock [Member]                      
Shares Issued, Price Per Share (in dollars per share)     $ 5,000.000                
Dividends Payable, Amount Per Share (in dollars per share)   $ 750                  
Preferred Stock, Par or Stated Value Per Share (in dollars per share)   $ 0.001                  
Dividends Payable   $ 1,000                  
Conversion of Stock, Shares Converted (in shares)   4,636,649                  
Conversion of Stock, Shares Issued (in shares)   695,498                  
Convertible Preferred Stock, Shares Issued upon Conversion (in shares)     3,333                
Debt Instrument, Convertible, Conversion Price (in dollars per share)     $ 1.50                
Preferred Stock, Dividend Rate, Percentage     10.00%                
Dividends Payable, Date of Record   Apr. 15, 2021                  
Over-Allotment Option [Member]                      
Stock Issued During Period, Shares, New Issues (in shares)       375,000