CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	9 Months Ended
	Jun. 30, 2017	Jun. 30, 2016
Cash flows from operating activities:
Net income (loss)	$ (6,529)	$ 1,858
Adjustments to reconcile net income to net cash provided by (used in) operating activities:
Depreciation	15,980	15,316
Amortization	369	375
Pension and post-retirement expense - U.S. and U.K.	17,557	14,394
Change in long-term obligations		38
Stock compensation expense	1,561	1,432
Excess tax expense from restricted stock vesting		149
Deferred revenue	(6,863)	9,376
Deferred income taxes	(4,098)	4,007
Loss on disposition of property	452	213
Change in assets and liabilities:
Restricted cash	5,446	(9,200)
Accounts receivable	675	5,830
Inventories	(10,678)	(2,133)
Other assets	259	(144)
Accounts payable and accrued expenses	9,257	(1,718)
Income taxes	(3,188)	(3,653)
Accrued pension and postretirement benefits	(8,352)	(9,794)
Net cash provided by operating activities	11,848	26,346
Cash flows from investing activities:
Additions to property, plant and equipment	(14,059)	(22,102)
Net cash used in investing activities	(14,059)	(22,102)
Cash flows from financing activities:
Dividends paid	(8,257)	(8,240)
Proceeds from exercise of stock options		310
Payment for purchase of treasury stock	(266)	(289)
Excess tax expense from restricted stock vesting		(149)
Payment on long-term obligation	(111)	(37)
Net cash used in financing activities	(8,634)	(8,405)
Effect of exchange rates on cash	25	(466)
Increase (decrease) in cash and cash equivalents:	(10,820)	(4,627)
Cash and cash equivalents:
Beginning of period	59,297	49,045
End of period	48,477	44,418
Supplemental disclosures of cash flow information:
Interest (net of capitalized interest)	595	366
Income taxes paid (refunded), net	3,429	(48)
Capital expenditures incurred but not yet paid	$ 789	$ 2,521