Condensed Consolidated Statements of Operations (Unaudited) - USD ($) shares in Thousands	3 Months Ended		9 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Income Statement [Abstract]
Revenues, net	$ 30,740,000	$ 19,964,000	$ 85,608,000	$ 73,983,000
Cost of sales	19,755,000	14,064,000	52,850,000	47,025,000
Gross profit	10,985,000	5,900,000	32,758,000	26,958,000
Selling, general and administrative	10,300,000	7,157,000	30,924,000	21,008,000
Research, development and engineering	1,804,000	1,646,000	4,714,000	5,018,000
Gain on sale of fixed assets		(12,465,000)		(12,465,000)
Severance expense			400,000
Operating (loss) income	(1,119,000)	9,562,000	(3,280,000)	13,397,000
Interest income (expense) and other, net	303,000	680,000	(26,000)	627,000
(Loss) income before income tax provision	(816,000)	10,242,000	(3,306,000)	14,024,000
Income tax provision (benefit)	211,000	20,000	(2,739,000)	840,000
Net (loss) income	$ (1,027,000)	$ 10,222,000	$ (567,000)	$ 13,184,000
Income Per Share:
Net (loss) income per basic share	$ (0.07)	$ 0.74	$ (0.04)	$ 0.94
Net (loss) income per diluted share	$ (0.07)	$ 0.73	$ (0.04)	$ 0.93
Weighted average shares outstanding - basic	14,058	13,889	14,031	14,042
Weighted average shares outstanding - diluted	14,058	14,026	14,031	14,220