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Note 17 - Stockholders' Equity - Summary of Changes in Stockholders' Equity (Details) - USD ($)
$ in Thousands
 3 Months Ended 9 Months Ended 12 Months Ended
Jun. 30, 2024
Mar. 31, 2024
Dec. 31, 2023
Jun. 30, 2023
Mar. 31, 2023
Dec. 31, 2022
Jun. 30, 2024
Jun. 30, 2023
Sep. 30, 2023
Balance $ 34,882 $ 40,553 $ 33,812 $ 44,802 $ 47,604 $ 50,393 $ 33,812 $ 50,393 $ 50,393
Share-based compensation expense 299 524 446 396 513 420      
Issuance of common stock upon offering, net of issuance costs     10,449     32      
Issuance of common stock upon vesting of restricted stock units (in shares)             348,178 253,012  
Issuance of common stock upon vesting of restricted stock units 0 0 0 0 (2) 0      
Stock Issued During Period, Value, Acquisitions     1,924            
Release of obligation to issue common stock     0     0      
Increase in Additional Paid-in Capital, Obligation to Issue Common Stock   158 527            
Accumulated other comprehensive loss (25) (59) 119 21 81 266      
Net loss (6,682) (6,938) (6,724) (1,423) (3,403) (3,507) $ (20,344) $ (8,334)  
Issuance of common stock upon exercise of stock options, net (in shares)             0 258,871  
Issuance of common stock upon exercise of stock options, net       1 54        
Issuance of common stock upon cashless exercise of stock options, net       0 0        
Shares retained for payment of taxes in connection with settlement of restricted stock units   (12)   (207) (45)        
Retirement of common stock       0          
Balance 28,474 34,882 $ 40,553 $ 43,590 $ 44,802 $ 47,604 $ 28,474 $ 43,590 $ 33,812
Contingent Consideration Liability [Member]                  
Stock Issued During Period, Value, Acquisitions $ 0 $ 656              
Common Stock [Member]                  
Balance (in shares) 44,485,851 44,027,121 37,211,071 36,984,295 36,713,471 36,611,240 37,211,071 36,611,240 36,611,240
Balance $ 445 $ 440 $ 372 $ 370 $ 367 $ 366 $ 372 $ 366 $ 366
Share-based compensation expense $ 0 $ 0 $ 0 $ 0 $ 0 $ 0      
Issuance of common stock upon offering, net of issuance costs (in shares)     5,750,000     20,000      
Issuance of common stock upon offering, net of issuance costs     $ 57     $ 0      
Issuance of common stock upon vesting of restricted stock units (in shares) 7,080 229,233 10,000 7,584 232,761 12,667      
Issuance of common stock upon vesting of restricted stock units $ 0 $ 2 $ 0 $ 0 $ 2 $ 0      
Stock Issued During Period, Shares, Acquisitions     986,486            
Release of obligation to issue common stock (in shares)     69,564     69,564      
Stock Issued During Period, Value, Acquisitions     $ 10            
Release of obligation to issue common stock     1     $ 1      
Increase in Additional Paid-in Capital, Obligation to Issue Common Stock   0 0            
Accumulated other comprehensive loss 0 0 0 0 0        
Net loss $ 0 $ 0 $ 0 $ 0 $ 0 $ 0      
Issuance of common stock upon exercise of stock options, net (in shares)       1,000 33,765        
Issuance of common stock upon exercise of stock options, net       $ 0 $ 1        
Issuance of common stock upon cashless exercise of stock options, net (in shares)       372,286 15,914        
Issuance of common stock upon cashless exercise of stock options, net       $ 4 $ 0        
Shares retained for payment of taxes in connection with settlement of restricted stock units (in shares)   (6,846)   (74,606) (11,616)        
Shares retained for payment of taxes in connection with settlement of restricted stock units   $ 0   $ (1) $ 0        
Retirement of common stock (in shares)       (109,488)          
Retirement of common stock       $ (1)          
Balance (in shares) 44,604,014 44,485,851 44,027,121 37,181,071 36,984,295 36,713,471 44,604,014 37,181,071 37,211,071
Balance $ 446 $ 445 $ 440 $ 372 $ 370 $ 367 $ 446 $ 372 $ 372
Common Stock [Member] | Contingent Consideration Liability [Member]                  
Stock Issued During Period, Shares, Acquisitions 111,083 236,343              
Stock Issued During Period, Value, Acquisitions $ 1 $ 3              
Additional Paid-in Capital [Member]                  
Balance 125,051 123,725 110,379   109,003 108,551 110,379 108,551 108,551
Share-based compensation expense 299 524 446   513 420      
Issuance of common stock upon offering, net of issuance costs     10,449     32      
Issuance of common stock upon vesting of restricted stock units 0 0 0 0 (2) 0      
Stock Issued During Period, Value, Acquisitions     1,924            
Release of obligation to issue common stock     0     0      
Increase in Additional Paid-in Capital, Obligation to Issue Common Stock   158 527            
Accumulated other comprehensive loss 0 0 0   0 0      
Net loss 0 0 0 0   0      
Issuance of common stock upon exercise of stock options, net       1 54        
Shares retained for payment of taxes in connection with settlement of restricted stock units   (12)     (45)        
Adjustments to Additional Paid in Capital, Retirement of Common Stock       300          
Balance 125,350 125,051 123,725 110,013   109,003 125,350 110,013 110,379
Additional Paid-in Capital [Member] | Contingent Consideration Liability [Member]                  
Stock Issued During Period, Value, Acquisitions   656              
Retained Earnings [Member]                  
Balance (89,724) (82,786) (76,062) (64,276) (60,873) (57,366) (76,062) (57,366) (57,366)
Share-based compensation expense 0 0 0 0 0 0      
Issuance of common stock upon offering, net of issuance costs     0     0      
Issuance of common stock upon vesting of restricted stock units 0 0 0 0 0 0      
Stock Issued During Period, Value, Acquisitions     0            
Release of obligation to issue common stock     0     0      
Increase in Additional Paid-in Capital, Obligation to Issue Common Stock   0 0            
Accumulated other comprehensive loss 0 0 0 0 0 0      
Net loss (6,682) (6,938) (6,724) (1,423) (3,403) (3,507)      
Issuance of common stock upon exercise of stock options, net       0 0        
Issuance of common stock upon cashless exercise of stock options, net       0 0        
Shares retained for payment of taxes in connection with settlement of restricted stock units   0   0 0        
Retirement of common stock       (300)          
Balance (96,406) (89,724) (82,786) (65,999) (64,276) (60,873) (96,406) (65,999) (76,062)
Retained Earnings [Member] | Contingent Consideration Liability [Member]                  
Stock Issued During Period, Value, Acquisitions 0 0              
AOCI Attributable to Parent [Member]                  
Balance (445) (386) (505) (445) (526) (792) (505) (792) (792)
Share-based compensation expense 0 0 0 0 0 0      
Issuance of common stock upon offering, net of issuance costs     0     0      
Issuance of common stock upon vesting of restricted stock units 0 0 0 0 0 0      
Stock Issued During Period, Value, Acquisitions     0            
Release of obligation to issue common stock     0            
Increase in Additional Paid-in Capital, Obligation to Issue Common Stock   0 0            
Accumulated other comprehensive loss (25) (59) 119 21 81 266      
Net loss 0 0 0 0 0        
Issuance of common stock upon exercise of stock options, net       0 0        
Issuance of common stock upon cashless exercise of stock options, net       0 0        
Shares retained for payment of taxes in connection with settlement of restricted stock units   0   0 0        
Balance (470) (445) $ (386) $ (424) $ (445) $ (526) $ (470) $ (424) $ (505)
AOCI Attributable to Parent [Member] | Contingent Consideration Liability [Member]                  
Stock Issued During Period, Value, Acquisitions $ 0 $ 0