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v3.23.3

Consolidated Balance Sheets (Current Period Unaudited) (Parentheticals) - USD ($) $ in Thousands | Sep. 30, 2023 | Jun. 30, 2023
--- | --- | ---
Accounts and other receivables, allowance for credit loss | $ 0 |  | $ 0
Investments in available-for-sale debt securities, amortized cost | 7,414 | [1] | 7,729
Investments in available-for-sale debt securities, allowance for credit loss | $ 0 |  | $ 0
Common Class A [Member] |  |  |
Common Stock, Par value (in dollars per share) | $ 0.025 |  | $ 0.025
Common Stock, Shares Authorized (in shares) | 28,000,000 |  | 28,000,000
Common Stock, Shares, Issued (in shares) | 13,866,999 |  | 13,866,999
Common Stock, Shares, Outstanding (in shares) | 12,303,955 |  | 12,496,674
Treasury shares (in shares) | 1,563,044 |  | 1,370,325
Common Class B [Member] |  |  |
Common Stock, Par value (in dollars per share) | $ 0.025 |  | $ 0.025
Common Stock, Shares Authorized (in shares) | 4,500,000 |  | 4,500,000
Common Stock, Shares, Issued (in shares) | 0 |  | 0
Common Class C [Member] |  |  |
Common Stock, Par value (in dollars per share) | $ 0.025 |  | $ 0.025
Common Stock, Shares Authorized (in shares) | 3,500,000 |  | 3,500,000
Common Stock, Shares, Issued (in shares) | 2,068,549 |  | 2,068,549
Common Stock, Shares, Outstanding (in shares) | 2,068,549 |  | 2,068,549
[1] | Principal payments of $750,000 are due quarterly with a final maturity date in January 2026.

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