Consolidated Statements of Changes in Shareholders' Equity (Unaudited) - USD ($) $ in Thousands	Total	Common Stock	Paid-in Capital	Retained Earnings	Treasury Stock
Beginning Balance (in shares) at Sep. 30, 2019		10,861,950
Beginning Balance at Sep. 30, 2019	$ 29,447	$ 109	$ (4,377)	$ 34,715	$ (1,000)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	(1,718)			(1,718)
Share based compensation expense	14		14
Ending Balance (in shares) at Dec. 31, 2019		10,861,950
Ending Balance at Dec. 31, 2019	27,743	$ 109	(4,363)	32,997	(1,000)
Beginning Balance (in shares) at Sep. 30, 2019		10,861,950
Beginning Balance at Sep. 30, 2019	29,447	$ 109	(4,377)	34,715	(1,000)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	(16,379)
Ending Balance (in shares) at Mar. 31, 2020		10,971,950
Ending Balance at Mar. 31, 2020	13,724	$ 109	(3,722)	18,336	(1,000)
Beginning Balance (in shares) at Dec. 31, 2019		10,861,950
Beginning Balance at Dec. 31, 2019	27,743	$ 109	(4,363)	32,997	(1,000)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	(14,661)			(14,661)
Restricted stock issuance	377		377
Stock option exercise (in shares)		110,000
Stock option exercise	173	$ 1	172
Share based compensation expense	92		92
Ending Balance (in shares) at Mar. 31, 2020		10,971,950
Ending Balance at Mar. 31, 2020	13,724	$ 109	(3,722)	18,336	(1,000)
Beginning Balance (in shares) at Sep. 30, 2020		11,822,009
Beginning Balance at Sep. 30, 2020	14,933	$ 118	(2,567)	17,382	0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	(1,953)			(1,953)
Issuance of common shares (in shares)		238,194
Issuance of common shares	879	$ 3	876
Restricted stock issuance (in shares)		306,390
Restricted stock issuance	0	$ 3	(3)
Share based compensation expense	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	0
Beginning Balance (in shares) at Sep. 30, 2020		11,822,009
Beginning Balance at Sep. 30, 2020	14,933	$ 118	(2,567)	17,382	0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	$ (5,017)
Stock option exercise (in shares)	49,000
Ending Balance (in shares) at Mar. 31, 2021		12,413,372
Ending Balance at Mar. 31, 2021	$ 11,465	$ 124	(1,023)		0
Beginning Balance (in shares) at Dec. 31, 2020		12,366,593
Beginning Balance at Dec. 31, 2020	14,174	$ 124	(1,379)	15,429	0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	(3,064)			$ (3,064)
Issuance of common shares (in shares)		7,779
Issuance of common shares	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
Share based compensation expense	246		246
Ending Balance (in shares) at Mar. 31, 2021		12,413,372
Ending Balance at Mar. 31, 2021	$ 11,465	$ 124	$ (1,023)		$ 0