CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - Unaudited (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Sep. 30, 2014	Sep. 30, 2013
Operating activities:
Net income	$ 4,828	$ 11,335
Adjustments to reconcile net income to net cash (used in) provided by operating activities:
Depreciation and amortization	3,029	1,774
Provision for doubtful accounts	166	70
Non-cash stock compensation	1,129	798
Deferred income taxes	(40)	6
Earnings on equity investment in joint venture	(456)	(313)
Changes in assets and liabilities:
Trade accounts receivable	(5,894)	(2,224)
Other receivables	320	(1,082)
Inventory	6,546	(2,356)
Prepaid expenses and other current assets	(1,351)	(826)
Other assets	490	(11)
Accounts payable	(4,357)	1,992
Accrued expenses and other liabilities	(5,309)	(1,153)
Net cash (used in) provided by operating activities	(899)	8,010
Investing activities:
Purchases of investments	(1,083)	(56)
Payments for intangible assets	(921)
Purchases of property and equipment, net	(225)	(356)
Net cash used in investing activities	(2,229)	(412)
Financing activities:
Payment of cash dividends	(1,741)	(1,665)
Proceeds from exercise of stock options	844	861
Excess tax benefit on stock option exercises and restricted stock	513	232
Borrowings of bank loans	5,000
Repayment of bank loans	(2,196)	(5,816)
Net cash provided by (used in) financing activities	2,420	(6,388)
Effect of exchange rate changes on cash	(1,520)	617
Net (decrease) increase in cash	(2,228)	1,827
Cash at beginning of period	42,897	33,231
Cash at end of period	$ 40,669	$ 35,058