Consolidated Statements of Changes in Shareholders' Equity - USD ($) $ in Thousands	Total	Common Stock	Paid in Capital	Retained Earnings	Treasury Stock
Balance (in shares) at Sep. 30, 2018		10,806,803
Balance at Sep. 30, 2018	$ 34,527	$ 108	$ (4,598)	$ 40,017	$ (1,000)
Net income (loss)	(5,302)			(5,302)
Common stock issuance (in shares)		55,147
Restricted stock issuance	75	$ 1	74
Amortization of stock-based compensation	147		147
Balance (in shares) at Sep. 30, 2019		10,861,950
Balance at Sep. 30, 2019	29,447	$ 109	(4,377)	34,715	(1,000)
Net income (loss)	(17,333)			(17,333)
Treasury stock, net (in shares)		(500,658)
Treasury stock, net	0	$ (5)	(995)		1,000
Common stock issuance (in shares)		573,199
Common stock issuance	2,109	$ 6	2,103
Restricted stock issuance (in shares)		764,184
Restricted stock issuance	$ (69)	$ 7	(76)
Stock options, exercised (in shares)	123,334	123,334
Stock option exercise	$ 205	$ 1	204
Amortization of stock-based compensation	574		574
Balance (in shares) at Sep. 30, 2020		11,822,009
Balance at Sep. 30, 2020	$ 14,933	$ 118	$ (2,567)	$ 17,382	$ 0