Consolidated Statements of Changes in Shareholders' Equity - USD ($) $ in Thousands	Total	Common Stock	Paid-in Capital	Retained Earnings
Beginning balance (in shares) at Sep. 30, 2020		11,822,009
Beginning balance at Sep. 30, 2020	$ 14,933	$ 118	$ (2,567)	$ 17,382
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	(1,953)			(1,953)
Common stock issuance (in shares)		238,194
Common stock issuance	879	$ 3	876
Restricted stock issuance (in shares)		306,390
Restricted stock issuance	0	$ 3	(3)
Amortization of stock-based compensation	315		315
Ending balance (in shares) at Dec. 31, 2020		12,366,593
Ending balance at Dec. 31, 2020	14,174	$ 124	(1,379)	15,429
Beginning balance (in shares) at Sep. 30, 2020		11,822,009
Beginning balance at Sep. 30, 2020	14,933	$ 118	(2,567)	17,382
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	(5,017)
Ending balance (in shares) at Mar. 31, 2021		12,413,372
Ending balance at Mar. 31, 2021	11,465	$ 124	(1,023)	12,364
Beginning balance (in shares) at Dec. 31, 2020		12,366,593
Beginning balance at Dec. 31, 2020	14,174	$ 124	(1,379)	15,429
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	(3,064)			(3,064)
Common stock issuance (in shares)		7,779
Common stock issuance	21		21
Restricted stock issuance (in shares)		(10,000)
Restricted stock issuance	(1)	$ (1)
Stock option exercise (in shares)		49,000
Stock option exercise	89		89
Amortization of stock-based compensation	246		246
Ending balance (in shares) at Mar. 31, 2021		12,413,372
Ending balance at Mar. 31, 2021	11,465	$ 124	(1,023)	12,364
Beginning balance (in shares) at Sep. 30, 2021		12,610,229
Beginning balance at Sep. 30, 2021	10,427	$ 126	(578)	10,879
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	(2,029)			(2,029)
Common stock issuance (in shares)		320,787
Common stock issuance	636	$ 3	633
Restricted stock issuance (in shares)		110,111
Restricted stock issuance	0	$ 1	(1)
Amortization of stock-based compensation	281		281
Ending balance (in shares) at Dec. 31, 2021		13,041,127
Ending balance at Dec. 31, 2021	9,315	$ 130	335	8,850
Beginning balance (in shares) at Sep. 30, 2021		12,610,229
Beginning balance at Sep. 30, 2021	10,427	$ 126	(578)	10,879
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	(3,422)
Ending balance (in shares) at Mar. 31, 2022		13,189,112
Ending balance at Mar. 31, 2022	8,336	$ 132	748	7,456
Beginning balance (in shares) at Dec. 31, 2021		13,041,127
Beginning balance at Dec. 31, 2021	9,315	$ 130	335	8,850
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	(1,394)			(1,394)
Common stock issuance (in shares)		143,985
Common stock issuance	168	$ 2	166
Restricted stock issuance (in shares)		4,000
Amortization of stock-based compensation	247		247
Ending balance (in shares) at Mar. 31, 2022		13,189,112
Ending balance at Mar. 31, 2022	$ 8,336	$ 132	$ 748	$ 7,456