CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) - $ / shares	Jun. 30, 2023	Sep. 30, 2022
Preferred stock, par or stated value per share (in usd per shares)	$ 0.01	$ 0.01
Preferred stock, shares authorized (in shares)	1,000,000	1,000,000
Preferred stock, shares issued (in shares)	0	0
Preferred stock, shares outstanding (in shares)	0	0
Class A Common Stock
Common stock, par or stated value per share (in usd per shares)	$ 0.01	$ 0.01
Common stock, shares authorized (in shares)	40,000,000	40,000,000
Common stock, shares, issued (in shares)	14,316,518	14,211,621
Common stock, shares, outstanding (in shares)	14,316,518	14,211,621
Class B Common Stock
Common stock, par or stated value per share (in usd per shares)	$ 0.01	$ 0.01
Common stock, shares authorized (in shares)	10,000,000	10,000,000
Common stock, shares, issued (in shares)	1,429,940	1,429,940
Common stock, shares, outstanding (in shares)	1,429,940	1,429,940