Income Taxes (Details 3) - USD ($) $ in Thousands	Sep. 30, 2015	Sep. 30, 2014
Deferred tax assets:
Net non-U.S. operating loss carryforwards	$ 595	$ 592
Employee benefits	3,340	2,581
Inventory reserves	865	495
Allowance for doubtful accounts	377	84
Foreign tax credits to undistributed earnings	0	1,940
Intangibles	1,936	2,982
Foreign tax credits	517	492
Other	1,007	87
Total deferred tax assets	8,637	9,253
Deferred tax liabilities:
Depreciation	(9,022)	(4,836)
Unremitted foreign earnings	(65)	(2,997)
Prepaid expenses	(432)	(580)
Other	(87)	0
Total deferred tax liabilities	(9,606)	(8,413)
Net deferred tax assets (liabilities)	(969)	840
Valuation allowance	(1,095)	(823)
Net deferred tax assets (liabilities)	$ (2,064)
Net deferred tax assets (liabilities)		$ 17