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Consolidated Balance Sheets (Unaudited) (Parenthetical) - USD ($)	Dec. 31, 2020	Jun. 30, 2020
Statement of Financial Position [Abstract]
Allowance for doubtful trade accounts receivable	$ 10,352	$ 9,917
Preferred stock: Series D, par value	$ .01	$ 0.01
Preferred stock: Series D, shares authorized	500,000	500,000
Preferred stock: Series D, shares issued	0	0
Preferred stock: Series D, shares outstanding	0	0
Common stock: Class A, par value	$ .01	$ 0.01
Common stock: Class A, shares authorized	44,500,000	44,500,000
Common stock: Class A, shares issued	26,127,361	25,891,885
Common stock: Class A, shares outstanding	26,127,361	25,891,885

X

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

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