CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Dec. 31, 2013	Dec. 31, 2012
Operating activities:
Net income	$ 18,090	$ 9,333
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	3,567	3,475
Provision for doubtful accounts	(41)	30
Non-cash stock compensation	1,772	906
Deferred income taxes	(219)	(52)
Earnings on equity investment in joint venture	(898)	(1,217)
Changes in assets and liabilities:
Trade accounts receivable	3,923	(2,118)
Other receivables	(198)	(761)
Inventory	(9,154)	(11,279)
Prepaid expenses and other current assets	41	(64)
Other assets	959	76
Accounts payable	(62)	1,332
Accrued expenses and other liabilities	(1,827)	2,388
Net cash provided by operating activities	15,953	2,049
Investing activities:
Payment for net assets of business acquired, net of cash acquired	(227)
Purchases of investments	(72)	(1,050)
Sales of investments	501	1,029
Payments for intangible assets	(452)	(192)
Purchases of property and equipment, net	(562)	(765)
Net cash used in investing activities	(812)	(978)
Financing activities:
Payment of cash dividends	(3,401)	(2,977)
Proceeds from exercise of stock options	2,472	1,124
Excess tax benefit on stock option exercises and restricted stock	1,136	332
Payment of deferred consideration		(1,470)
Borrowings of bank loans	8,000	7,000
Repayment of bank loans	(15,616)	(5,114)
Net cash used in financing activities	(7,409)	(1,105)
Effect of exchange rate changes on cash	1,004	498
Net increase in cash	8,736	464
Cash at beginning of period	33,231	24,862
Cash at end of period	$ 41,967	$ 25,326