CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Mar. 31, 2017	Jun. 30, 2016
Current assets:
Cash and cash equivalents	$ 5,727	$ 21,095
Short-term investments	26,541	25,591
Accounts and notes receivable, net	50,426	44,364
Inventories	60,712	46,378
Income tax receivable	293	247
Short-term derivative assets	0	3,954
Prepaid expenses	4,789	4,557
Assets held for sale	0	7,179
Total current assets	148,488	153,365
Property, plant and equipment, net	171,977	118,416
Goodwill	9,940	272
Intangible assets, net	19,172	6,219
Other assets	7,311	9,933
Deferred income taxes	66,046	80,786
Total assets	422,934	368,991
Current liabilities:
Accounts payable	45,216	23,919
Accrued payroll expenses	18,168	24,540
Short-term borrowings under revolving credit facility	44,175	109
Short-term obligations under capital leases	1,131	1,323
Short-term derivative liabilities	339	0
Other current liabilities	7,074	6,946
Total current liabilities	116,103	56,837
Accrued pension liabilities	67,331	68,047
Accrued postretirement benefits	20,183	20,808
Accrued workers’ compensation liabilities	10,248	11,459
Other long-term liabilities-capital leases	389	1,036
Other long-term liabilities	600	28,210
Total liabilities	214,854	186,397
Commitments and contingencies
Stockholders’ equity:
Preferred stock, $1.00 par value, 500,000 shares authorized and none issued	0	0
Common stock, $1.00 par value, 25,000,000 shares authorized; 16,841,650 and 16,781,561 shares issued and outstanding at March 31, 2017 and June 30, 2016, respectively	16,842	16,782
Additional paid-in capital	40,704	39,096
Retained earnings	220,070	196,782
Unearned ESOP shares	(4,289)	(6,434)
Accumulated other comprehensive loss	(65,247)	(63,632)
Total stockholders’ equity	208,080	182,594
Total liabilities and stockholders’ equity	$ 422,934	$ 368,991