Condensed Consolidated Statements of Shareholders' Equity - USD ($) $ in Thousands	Total	Common Stock	Treasury Stock	Additional Paid- In Capital	Accumulated Other Comprehensive Income (Loss)	Retained Earnings (Accumulated Deficit)
Beginning balance at Sep. 30, 2018	$ 93,090	$ 142		$ 124,316	$ (9,974)	$ (21,394)
Beginning balance (in shares) at Sep. 30, 2018		14,217,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	(2,372)					(2,372)
Translation adjustment	(576)				(576)
Stock compensation expense	169			169
Stock options exercised	37			37
Stock options exercised (in shares)		11,000
Ending balance at Dec. 31, 2018	90,348	$ 142		124,522	(10,550)	(23,766)
Ending balance (in shares) at Dec. 31, 2018		14,228,000
Beginning balance at Sep. 30, 2018	93,090	$ 142		124,316	(9,974)	(21,394)
Beginning balance (in shares) at Sep. 30, 2018		14,217,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	(8,007)
Ending balance at Mar. 31, 2019	84,697	$ 142		124,716	(10,760)	(29,401)
Ending balance (in shares) at Mar. 31, 2019		14,228,000
Beginning balance at Dec. 31, 2018	90,348	$ 142		124,522	(10,550)	(23,766)
Beginning balance (in shares) at Dec. 31, 2018		14,228,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	(5,635)					(5,635)
Translation adjustment	(210)				(210)
Stock compensation expense	194			194
Ending balance at Mar. 31, 2019	84,697	$ 142		124,716	(10,760)	(29,401)
Ending balance (in shares) at Mar. 31, 2019		14,228,000
Beginning balance at Sep. 30, 2019	$ 87,452	$ 143		125,098	(11,233)	(26,556)
Beginning balance (in shares) at Sep. 30, 2019	14,268,797	14,269,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	$ (1,932)					(1,932)
Translation adjustment	2,673				2,673
Stock compensation expense	$ 68			68
Stock repurchases (in Shares)	0
Stock options exercised	$ 701	$ 1		700
Stock options exercised (in shares)		117,000
Ending balance at Dec. 31, 2019	88,962	$ 144		125,866	(8,560)	(28,488)
Ending balance (in shares) at Dec. 31, 2019		14,386,000
Beginning balance at Sep. 30, 2019	$ 87,452	$ 143		125,098	(11,233)	(26,556)
Beginning balance (in shares) at Sep. 30, 2019	14,268,797	14,269,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	$ (13,626)
Ending balance at Mar. 31, 2020	$ 82,157	$ 140		124,145	(1,814)	(40,314)
Ending balance (in shares) at Mar. 31, 2020	14,041,322	14,041,000
Beginning balance at Dec. 31, 2019	$ 88,962	$ 144		125,866	(8,560)	(28,488)
Beginning balance (in shares) at Dec. 31, 2019		14,386,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	(11,694)					(11,694)
Translation adjustment	6,746				6,746
Stock compensation expense	65			65
Stock repurchases	$ (2,000)		$ (2,000)
Stock repurchases (in Shares)	(366,000)		(366,000)
Retirement of stock repurchases		$ (4)	$ 2,000	(1,864)		(132)
Retirement of stock repurchases (in Shares)		(366,000)	366,000
Stock options exercised	$ 78			78
Stock options exercised (in shares)		21,000
Ending balance at Mar. 31, 2020	$ 82,157	$ 140		$ 124,145	$ (1,814)	$ (40,314)
Ending balance (in shares) at Mar. 31, 2020	14,041,322	14,041,000