Consolidated Balance Sheets (Parenthetical) - USD ($) shares in Thousands, $ in Thousands	Dec. 31, 2021	Jun. 30, 2021
Consolidated Balance Sheets [Abstract]
Trade receivables, allowance for doubtful accounts	$ 3,430	$ 3,240
Common stock, par value	$ 1	$ 1
Common stock, authorized	15,000	15,000
Common stock, issued	8,153	8,133
Common stock, outstanding	6,544	6,848
Treasury stock, shares	1,608	1,284

Amount of allowance for credit loss on accounts receivable, classified as current.

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Number of common and preferred shares that were previously issued and that were repurchased by the issuing entity and held in treasury on the financial statement date. This stock has no voting rights and receives no dividends.

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