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Consolidated Statements of Shareholders' Equity (Unaudited) - USD ($)
$ in Thousands
Cumulative Effect, Period of Adoption, Adjusted Balance [Member]
Common Stock [Member]
Common Class A [Member]
Cumulative Effect, Period of Adoption, Adjusted Balance [Member]
Common Stock [Member]
Common Class C [Member]
Cumulative Effect, Period of Adoption, Adjusted Balance [Member]
Additional Paid-in Capital [Member]
Cumulative Effect, Period of Adoption, Adjusted Balance [Member]
Treasury Stock, Common [Member]
Cumulative Effect, Period of Adoption, Adjusted Balance [Member]
AOCI Attributable to Parent [Member]
Cumulative Effect, Period of Adoption, Adjusted Balance [Member]
Retained Earnings [Member]
Cumulative Effect, Period of Adoption, Adjusted Balance [Member]
Common Stock [Member]
Common Class A [Member]
Common Stock [Member]
Common Class C [Member]
Additional Paid-in Capital [Member]
Treasury Stock, Common [Member]
Common Class A [Member]
Treasury Stock, Common [Member]
AOCI Attributable to Parent [Member]
Retained Earnings [Member]
Total
Balance (in shares) at Jun. 30, 2024               13,866,999 2,068,549            
Balance at Jun. 30, 2024               $ 347 $ 52 $ 16,443   $ (5,880) $ 584 $ 37,460 $ 49,006
Balance (in shares) at Jun. 30, 2024                       2,113,516      
Repurchases of shares of Common Stock (class A), including excise tax               $ 0 $ 0 0   $ (525) 0 0 (525)
Repurchases of shares of Common Stock (class A), including excise tax (in shares)                     197,887 197,887      
Issuance of stock under ESPP of shares of Common Stock (class A) (in shares)               0 0     (6,665)      
Issuance of stock under ESPP of shares of Common Stock (class A)               $ 0 $ 0 (1)   $ 18 0 0 17
Dividends declared               0 0 0   0 0 (304) (304)
Other Comprehensive Income (Loss), Net of Tax               0 0 0   0 (142) 0 (142)
Net income (loss)               $ 0 $ 0 0   0 0 315 315
Balance (in shares) (Accounting Standards Update 2016-13 [Member]) at Sep. 30, 2024 13,866,999 2,068,549                          
Balance (Accounting Standards Update 2016-13 [Member]) at Sep. 30, 2024 $ 347 $ 52 $ 16,442 $ (6,387) $ 442 $ 37,471 $ 48,367                
Balance (in shares) (Accounting Standards Update 2016-13 [Member]) at Sep. 30, 2024       2,304,738                      
Balance (in shares) at Jun. 30, 2025               13,866,999 2,068,549            
Balance at Jun. 30, 2025               $ 347 $ 52 16,556   $ (7,781) 98 35,935 $ 45,207
Balance (in shares) at Jun. 30, 2025                       2,884,312     2,884,312
Repurchases of shares of Common Stock (class A), including excise tax               $ 0 $ 0 0   $ (404) 0 0 $ (404)
Repurchases of shares of Common Stock (class A), including excise tax (in shares)                     159,074 159,074      
Issuance of stock under ESPP of shares of Common Stock (class A) (in shares)               0 0     (7,299)      
Issuance of stock under ESPP of shares of Common Stock (class A)               $ 0 $ 0 (2)   $ 20 0 0 18
Share-based compensation, net of tax               0 0 9   0 0 0 9
Dividends declared               0 0 0   0 0 (287) (287)
Other Comprehensive Income (Loss), Net of Tax               0 0 0   0 (59) 0 (59)
Net income (loss)               $ 0 $ 0 $ 0   $ 0 $ 0 $ 1,507 1,507
Balance (in shares) (Accounting Standards Update 2016-13 [Member]) at Sep. 30, 2025 13,866,999 2,068,549                          
Balance (Accounting Standards Update 2016-13 [Member]) at Sep. 30, 2025 $ 347 $ 52 $ 16,563 $ (8,165) $ 39 $ 37,155 $ 45,991                
Balance at Sep. 30, 2025                             $ 45,991
Balance (in shares) (Accounting Standards Update 2016-13 [Member]) at Sep. 30, 2025       3,036,087                      
Balance (in shares) at Sep. 30, 2025                             3,036,087