CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Sep. 30, 2016	Sep. 30, 2015
Current assets:
Cash and cash equivalents	$ 59,297	$ 49,045
Restricted cash (Note 21)	5,446
Accounts receivable, less allowance for doubtful accounts of $869 and $402 at September 30, 2015 and September 30, 2016, respectively	61,612	75,593
Inventories	236,558	247,836
Income taxes receivable	538	3,699
Deferred income taxes—current portion		6,295
Other current assets	2,809	2,974
Total current assets	366,260	385,442
Property, plant and equipment, net	199,182	185,351
Deferred income taxes—long term portion	71,010	53,958
Prepayments and deferred charges	1,798	1,877
Goodwill	4,789	4,789
Other intangible assets, net	6,562	6,774
Total assets	649,601	638,191
Current liabilities:
Accounts payable	29,925	29,386
Accrued expenses	12,880	16,576
Accrued pension and postretirement benefits	5,095	4,965
Deferred revenue—current portion	7,488	2,500
Total current liabilities	55,388	53,427
Long-term obligations (less current portion)	8,256	4,574
Deferred revenue (less current portion)	22,829	25,329
Deferred income taxes	1,578
Accrued pension benefits (less current portion)	(130,134)	(107,208)
Accrued postretirement benefits (less current portion)	120,117	105,664
Total liabilities	338,302	296,202
Commitments and contingencies (Notes 9 and 10)
Stockholders' equity:
Common stock, $0.001 par value (40,000,000 shares authorized, 12,467,498 and 12,520,308 shares issued and 12,446,000 and 12,491,149 outstanding at September 30, 2015 and September 30, 2016, respectively)	12	12
Preferred stock, $0.001 par value (20,000,000 shares authorized, 0 shares issued and outstanding)
Additional paid-in capital	246,625	244,488
Accumulated earnings	180,565	186,533
Treasury stock, 21,498 shares at September 30, 2015 and 29,159 shares at September 30, 2016	(1,380)	(1,091)
Accumulated other comprehensive loss	(114,523)	(87,953)
Total stockholders' equity	311,299	341,989
Total liabilities and stockholders' equity	$ 649,601	$ 638,191