Earnings Per Share of Common Stock - Basic and diluted EPS computations (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
Earnings Per Share of Common Stock
Net (loss) income	$ (264)	$ (185)	$ 100	$ 1,330
Less: net income attributable to nonvested common stock	0	0	(6)	(86)
Net (loss) income attributable to common shareholders	$ (264)	$ (185)	$ 94	$ 1,244
Weighted average total shares outstanding - basic	9,362	9,110	9,853	9,641
Less: weighted average non-vested shares outstanding	0	0	(578)	(627)
Weighted average number of common shares outstanding - basic	9,362	9,110	9,275	9,014
Add: potential common shares from non-vested restricted stock awards	0	0	336	396
Weighted average common shares outstanding - diluted	9,362	9,110	9,611	9,410
Net (loss) income per common share - basic (in dollars per share)	$ (0.03)	$ (0.02)	$ 0.01	$ 0.14
Net (loss) income per common share - diluted (in dollars per share)	$ (0.03)	$ (0.02)	$ 0.01	$ 0.13