Consolidated Statements of Operations - USD ($) $ in Thousands	12 Months Ended
	Sep. 30, 2021	Sep. 30, 2020
Income Statement [Abstract]
Sales	$ 62,160	$ 50,182
Cost of sales	46,033	38,502
Gross profit	16,127	11,680
Operating expenses	9,329	8,166
Selling, general and administrative expense	14,890	11,249
Impairment of right-of-use asset	0	660
Impairment of intangibles including goodwill	0	8,714
Depreciation and amortization expense	1,228	1,554
Gain on disposal of assets	23	133
Loss from operations	(9,297)	(18,530)
Other income (expense):
Gain on extinguishment of debt	2,955	0
Interest income	135	321
Interest expense	(238)	(254)
Income from equity method investment	0	41
Other expense	(110)	(160)
Other income (expense), net	2,742	(52)
Loss before income taxes	(6,555)	(18,582)
Income tax benefit	(53)	(1,249)
Net loss	$ (6,502)	$ (17,333)
Loss per share:
Basic (in dollars per share)	$ (0.52)	$ (1.55)
Diluted (in dollars per share)	$ (0.52)	$ (1.55)
Shares used in per share calculation:
Basic (in shares)	12,401,043	11,163,660
Diluted (in shares)	12,401,043	11,163,660