CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Mar. 31, 2019	Sep. 30, 2018
Current assets:
Cash and cash equivalents	$ 10,780	$ 9,802
Accounts receivable, less allowance for doubtful accounts of $1,130 and $1,401 at September 30, 2018 and March 31, 2019, respectively	81,088	73,437
Inventories	272,025	273,045
Income taxes receivable	2,451	7,240
Other current assets	3,630	2,825
Total current assets	369,974	366,349
Property, plant and equipment, net	175,577	179,400
Deferred income taxes	24,811	25,454
Other assets	7,197	7,163
Goodwill	4,789	4,789
Other intangible assets, net	5,384	5,539
Total assets	587,732	588,694
Current liabilities:
Accounts payable	40,823	37,140
Accrued expenses	17,962	17,463
Accrued pension and postretirement benefits	5,095	5,095
Deferred revenue—current portion	2,500	2,500
Total current liabilities	66,380	62,198
Long-term obligations (less current portion) (Note 15)	8,372	8,443
Deferred revenue (less current portion)	16,579	17,829
Deferred income taxes	1,919	1,919
Accrued pension benefits (less current portion)	61,107	62,072
Accrued postretirement benefits (less current portion)	103,683	103,013
Total liabilities	258,040	255,474
Commitments and contingencies (Note 7)
Stockholders’ equity:
Common stock, $0.001 par value (40,000,000 shares authorized, 12,546,591 and 12,566,819 shares issued and 12,504,478 and 12,515,480 shares outstanding at September 30, 2018 and March 31, 2019, respectively)	13	13
Preferred stock, $0.001 par value (20,000,000 shares authorized, 0 shares issued and outstanding)
Additional paid-in capital	252,425	251,053
Accumulated earnings	120,977	126,588
Treasury stock, 42,113 shares at September 30, 2018 and 51,339 shares at March 31, 2019	(2,177)	(1,869)
Accumulated other comprehensive loss	(41,546)	(42,565)
Total stockholders’ equity	329,692	333,220
Total liabilities and stockholders’ equity	$ 587,732	$ 588,694