CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Sep. 30, 2018	Sep. 30, 2017
Current assets:
Cash and cash equivalents	$ 9,802	$ 46,328
Accounts receivable, less allowance for doubtful accounts of $620 and $1,130 at September 30, 2017 and September 30, 2018, respectively	73,437	61,602
Inventories	273,045	244,457
Income taxes receivable	7,240
Other current assets	2,825	2,781
Total current assets	366,349	355,168
Property, plant and equipment, net	179,400	192,556
Deferred income taxes	25,454	58,133
Other assets	7,163	5,107
Goodwill	4,789	4,789
Other intangible assets, net	5,539	6,066
Total assets	588,694	621,819
Current liabilities:
Accounts payable	37,140	32,802
Accrued expenses	17,463	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	62,198	54,700
Long-term obligations (less current portion) (Note 18)	8,443	7,896
Deferred revenue (less current portion)	17,829	20,329
Deferred income taxes	1,919	1,741
Accrued pension benefits (less current portion)	62,072	90,957
Accrued postretirement benefits (less current portion)	103,013	112,424
Total liabilities	255,474	288,047
Commitments and contingencies (Notes 9 and 10)
Stockholders' equity:
Common stock, $0.001 par value (40,000,000 shares authorized, 12,544,933 and 12,546,591 shares issued and 12,509,757 and 12,504,478 shares outstanding at September 30, 2017 and September 30, 2018, respectively)	13	13
Preferred stock, $0.001 par value (20,000,000 shares authorized, 0 shares issued and outstanding)
Additional paid-in capital	251,053	248,733
Accumulated earnings	126,588	159,366
Treasury stock, 35,176 shares at September 30, 2017 and 42,113 shares at September 30, 2018	(1,869)	(1,646)
Accumulated other comprehensive loss	(42,565)	(72,694)
Total stockholders' equity	333,220	333,772
Total liabilities and stockholders' equity	$ 588,694	$ 621,819