CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (unaudited) - USD ($) $ in Thousands	3 Months Ended
	Sep. 30, 2018	Sep. 30, 2017
Operating activities:
Net (loss) income	$ (21,092)	$ 454
Adjustments to reconcile net (loss) income to net cash (used in) provided by operating activities:
Depreciation and amortization	8,043	8,301
Amortization of debt issuance costs and debt discount	1,600	1,513
Amortization of deferred financing costs	282	270
Provision for doubtful accounts	(7)	(15)
Non-cash stock compensation	(24)	3,146
Deferred income taxes	146	(1,099)
Environmental charge		902
Earnings on equity investment in joint venture	(708)	(231)
Changes in assets and liabilities:
Trade accounts receivable	(45,332)	21,137
Other receivables	582	149
Inventory	(19,639)	2,225
Prepaid expenses and other current assets	(1,657)	(944)
Other assets	(481)	(334)
Accounts payable	16,691	7,699
Accrued expenses and other liabilities	15,161	792
Net cash (used in) provided by operating activities	(46,435)	43,965
Investing activities:
Purchases of investments	(653)	(2,655)
Sales of investments	2,673	1,646
Payments for intangible assets	(520)	(54)
Purchases of property and equipment, net	(185)	(1,506)
Net cash provided by (used in) investing activities	1,315	(2,569)
Financing activities:
Payment of cash dividends		(1,935)
Proceeds from exercise of stock options		73
Repayment of bank loans	(3,799)	(23,783)
Net cash used in financing activities	(3,799)	(25,645)
Effect of exchange rate changes on cash	(408)	669
Net (decrease) increase in cash	(49,327)	16,420
Cash and cash equivalents at beginning of period	100,874	55,680
Cash and cash equivalents at end of period	51,547	$ 72,100
Non-Cash Item
Dividends declared but not paid	$ 306