CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Sep. 30, 2012	Sep. 30, 2011
Operating activities:
Net income	$ 4,820	$ 3,033
Adjustments to reconcile net income to net cash (used in) provided by operating activities:
Depreciation and amortization	1,725	1,729
Provision for doubtful accounts	37	17
Non-cash stock compensation	444	281
Deferred income taxes	(64)	(87)
Unrealized loss on trading securities		65
Earnings on equity investment in joint venture	(324)	(619)
Changes in assets and liabilities:
Trade accounts receivable	(1,597)	16,603
Other receivables	618	1,113
Inventory	(484)	1,562
Prepaid expenses and other current assets	(548)	(538)
Other assets	(37)	(126)
Accounts payable	(4,273)	(11,064)
Accrued expenses and other liabilities	(3,259)	(6,056)
Net cash (used in) provided by operating activities	(2,942)	5,913
Investing activities:
Purchases of investments	(32)	(471)
Maturities of investments		505
Sales of investments	1,002
Payments received on notes receivable		260
Purchases of property and equipment, net	(327)	(114)
Payments for intangible assets	(171)	(117)
Net cash used in investing activities	472	63
Financing activities:
Payment of cash dividends	(1,477)
Proceeds from exercise of stock options	576	21
Excess tax benefit on stock option exercises and restricted stock	158	9
Repayment of bank loans	(1,548)	(1,600)
Borrowings of bank loans	4,000
Net cash provided by (used in) financing activities	1,709	(1,570)
Effect of exchange rate changes on cash	242	(884)
Net (decrease) increase in cash	(519)	3,522
Cash at beginning of period	24,862	28,664
Cash at end of period	$ 24,343	$ 32,186