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Note 13 - Stockholders Equity (Details Textual) - USD ($)
3 Months Ended 12 Months Ended 14 Months Ended
May 10, 2022
Aug. 31, 2021
May 18, 2021
Oct. 01, 2018
Jun. 30, 2022
Mar. 31, 2022
[1]
Dec. 31, 2021
[1]
Sep. 30, 2021
[1]
Jun. 30, 2021
Mar. 31, 2021
[1]
Dec. 31, 2020
[1]
Sep. 30, 2020
[1]
Jun. 30, 2022
Jun. 30, 2021
Jun. 30, 2020
[1]
May 09, 2019
Jan. 01, 2013
Stock Repurchased During Period, Shares (in shares)         192,747 [1] 538,376 244,552 7,600 126,927 [1] 84,081 0 0 983,275 211,008 519,786    
Treasury Stock, Shares, Total (in shares)         0               0        
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount, Total         $ 4,800,000               $ 4,800,000        
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition (Year)                         1 year 8 months 19 days        
Preferred Stock, Shares Authorized (in shares)         30,000,000       30,000,000       30,000,000 30,000,000      
Preferred Stock, Par or Stated Value Per Share (in dollars per share)         $ 0.01       $ 0.01       $ 0.01 $ 0.01      
Stock Repurchase Program, Authorized Amount   $ 12,000,000 $ 8,000,000   $ 21,000,000               $ 21,000,000     $ 4,000,000.0  
Stock Repurchase Program, Increase in Authorized Amount $ 9,000,000 $ 4,000,000 $ 4,000,000                            
Stock Repurchase Program, Remaining Authorized Repurchase Amount         $ 10,817,104               $ 10,817,104        
Blank Check [Member]                                  
Preferred Stock, Shares Authorized (in shares)         30,000,000               30,000,000        
Preferred Stock, Par or Stated Value Per Share (in dollars per share)         $ 0.01               $ 0.01        
Series B Preferred Stock [Member]                                  
Preferred Stock, Shares Authorized (in shares)         700,000       700,000       700,000 700,000      
Preferred Stock, Shares, Number (in shares)                         700,000        
Preferred Stock, Shares Issued, Total (in shares)         625,375       625,375       625,375 625,375      
Series B-1 Preferred Stock [Member]                                  
Preferred Stock, Shares Authorized (in shares)         550,000       550,000       550,000 550,000      
Preferred Stock, Shares, Number (in shares)                         550,000        
Preferred Stock, Cash, Dividend Rate, Percentage                         7.00%        
Preferred Stock, Series B Preferred Shares, Dividend Rate, Percentage                         9.00%        
Preferred Stock, Redemption Price Per Share (in dollars per share)         $ 10.70               $ 10.70        
Preferred Stock, Shares Issued, Total (in shares)         212,402       212,402       212,402 212,402      
Share-Based Payment Arrangement [Member] | Amended 2011 Plan [Member]                                  
Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Authorized (in shares)                                 675,000
Restricted Stock Units (RSUs) [Member] | Amended 2011 Plan [Member]                                  
Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Vested and Issued (in shares)                         16,480 9,357      
Restricted Stock Units (RSUs) [Member] | Vested and Unissued [Member]                                  
Share-Based Compensation Arrangement by Share-Based Payment Award, Non-Option Equity Instruments, Outstanding, Number, Ending Balance (in shares)         18,251               18,251        
Director [Member]                                  
Deferred Compensation Cash-Based Arrangements, Liability, Current       $ 75,000                          
Deferred Compensation Cash-Based Arrangements, Liability, Per Quarter       18,750                          
Director [Member] | Share-Based Payment Arrangement [Member] | Amended 2011 Plan [Member]                                  
Share-Based Compensation Arrangement by Share-Based Payment Award, Shares Issued in Period (in shares)                         59,988 40,883      
Independent Directors [Member] | Restricted Stock [Member]                                  
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Aggregate Intrinsic Value, Nonvested       $ 150,000                          
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Period (Year)       5 years                          
Employees and Consultants [Member] | Share-Based Payment Arrangement [Member] | Amended 2011 Plan [Member]                                  
Share-Based Compensation Arrangement by Share-Based Payment Award, Shares Issued in Period (in shares)                         31,890 37,575      
[1] We close our books and records on the last calendar day of each month to align our financial closing with our business processes.