CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	3 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Cash flows from operating activities:
Net income (loss)	$ (22,526)	$ (672)
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:
Depreciation	5,744	5,262
Amortization	133	123
Pension and post-retirement expense - U.S. and U.K.	3,556	5,859
Stock compensation expense	606	558
Deferred revenue	(625)	(5,205)
Deferred income taxes	27,488	729
Loss on disposition of property		254
Change in assets and liabilities:
Restricted cash		3,523
Accounts receivable	6,979	7,648
Inventories	(22,502)	(6,973)
Other assets	(989)	(1,041)
Accounts payable and accrued expenses	8,583	8,938
Income taxes	(10,300)	(2,705)
Accrued pension and postretirement benefits	(2,400)	(2,829)
Net cash provided by (used in) operating activities	(6,253)	13,469
Cash flows from investing activities:
Additions to property, plant and equipment	(3,183)	(5,893)
Net cash provided by (used in) investing activities	(3,183)	(5,893)
Cash flows from financing activities:
Dividends paid	(2,754)	(2,752)
Payment for purchase of treasury stock	(230)	(266)
Payment on long-term obligation	(67)	(55)
Net cash provided by (used in) financing activities	(3,051)	(3,073)
Effect of exchange rates on cash	125	(839)
Increase (decrease) in cash and cash equivalents:	(12,362)	3,664
Cash and cash equivalents:
Beginning of period	46,328	59,297
End of period	33,966	62,961
Supplemental disclosures of cash flow information:
Interest (net of capitalized interest)	215	155
Income taxes paid (refunded), net	464	1,836
Capital expenditures incurred, but not yet paid	$ 896	$ 991