CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Dec. 31, 2017	Sep. 30, 2017
Current assets:
Cash and cash equivalents	$ 33,966	$ 46,328
Accounts receivable, less allowance for doubtful accounts of $620 and $624 at September 30, 2017 and December 31, 2017, respectively	54,823	61,602
Inventories	267,228	244,457
Income taxes receivable	10,104
Other current assets	3,587	2,781
Total current assets	369,708	355,168
Property, plant and equipment, net	188,999	192,556
Deferred income taxes	29,889	58,133
Other assets	5,297	5,107
Goodwill	4,789	4,789
Other intangible assets, net	5,933	6,066
Total assets	604,615	621,819
Current liabilities:
Accounts payable	40,737	32,802
Accrued expenses	13,054	14,108
Income taxes payable		195
Accrued pension and postretirement benefits	5,095	5,095
Deferred revenue—current portion	2,500	2,500
Total current liabilities	61,386	54,700
Long-term obligations (less current portion)	8,626	7,896
Deferred revenue (less current portion)	19,704	20,329
Deferred income taxes	1,741	1,741
Accrued pension benefits (less current portion)	89,764	90,957
Accrued postretirement benefits (less current portion)	112,707	112,424
Total liabilities	293,928	288,047
Commitments and contingencies (Notes 6)
Stockholders' equity:
Common stock, $0.001 par value (40,000,000 shares authorized, 12,544,933 and 12,562,433 shares issued and 12,509,757 and 12,520,320 outstanding at September 30, 2017 and December 31, 2017, respectively)	13	13
Preferred stock, $0.001 par value (20,000,000 shares authorized, 0 shares issued and outstanding)
Additional paid-in capital	249,339	248,733
Accumulated earnings	134,082	159,366
Treasury stock, 35,176 shares at September 30, 2017 and 42,113 shares at December 31, 2017	(1,876)	(1,646)
Accumulated other comprehensive loss	(70,871)	(72,694)
Total stockholders' equity	310,687	333,772
Total liabilities and stockholders' equity	$ 604,615	$ 621,819