CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Sep. 30, 2013	Sep. 30, 2012
Operating activities:
Net income	$ 11,335	$ 4,820
Adjustments to reconcile net income to net cash provided by (used in) operating activities:
Depreciation and amortization	1,774	1,725
Provision for doubtful accounts	70	37
Non-cash stock compensation	798	444
Deferred income taxes	6	(64)
Earnings on equity investment in joint venture	(313)	(324)
Changes in assets and liabilities:
Trade accounts receivable	(2,224)	(1,597)
Other receivables	(1,082)	618
Inventory	(2,356)	(484)
Prepaid expenses and other current assets	(826)	(548)
Other assets	(11)	(37)
Accounts payable	1,992	(4,273)
Accrued expenses and other liabilities	(1,153)	(3,259)
Net cash provided by (used in) operating activities	8,010	(2,942)
Investing activities:
Purchases of investments	(56)	(32)
Sales of investments		1,002
Payments for intangible assets		(171)
Purchases of property and equipment, net	(356)	(327)
Net cash (used in) provided by investing activities	(412)	472
Financing activities:
Payment of cash dividends	(1,665)	(1,477)
Proceeds from exercise of stock options	861	576
Excess tax benefit on stock option exercises and restricted stock	232	158
Borrowings of bank loans		4,000
Repayment of bank loans	(5,816)	(1,548)
Net cash (used in) provided by financing activities	(6,388)	1,709
Effect of exchange rate changes on cash	617	242
Net increase (decrease) in cash	1,827	(519)
Cash at beginning of period	33,231	24,862
Cash at end of period	$ 35,058	$ 24,343