CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2013
Operating activities:
Net income	$ 33,483	$ 29,000	$ 22,328
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	11,849	8,091	6,944
Provision for doubtful accounts	484	8	409
Stock compensation	4,537	3,156	1,788
Deferred income taxes	(1,874)	(3,083)	(2,649)
Earnings on equity investment in joint venture	(1,761)	(2,024)	(1,790)
Contingent consideration	(3,468)		3,244
Environmental remediation charge	1,618
Changes in assets and liabilities:
Trade receivables	(44,181)	(19,400)	(14,985)
Other receivables	(5,644)	1,353	(2,685)
Inventory	(229)	(7,764)	1,632
Prepaid expenses and other current assets	304	(232)	(694)
Other assets	1,254	57	610
Accounts payable	8,133	5,216	(3,228)
Accrued expenses and other liabilities	1,816	8,868	12,807
Distributions from joint venture	2,022	1,810	1,745
Net cash provided by operating activities	8,343	25,056	25,476
Investing activities:
Payment for net assets of businesses acquired		(86,140)
Purchases of investments	(2,720)	(108)	(2,698)
Sales of investments		1,506	2,029
Payments for intangible assets	(1,564)	(746)	(1,505)
Purchases of property and equipment, net	(617)	(1,145)	(1,022)
Net cash used in investing activities	(4,901)	(86,633)	(3,196)
Financing activities:
Proceeds from exercise of stock options	1,273	3,655	6,257
Excess income tax benefit on stock option exercises and restricted stock	790	1,752	619
Payment of cash dividends	(6,964)	(6,806)	(6,016)
Payment of deferred consideration	(3,500)	(1,500)	(1,470)
Payment of contingent consideration	(4,500)
Borrowings of bank loans	19,000	114,145	10,000
Repayment of bank loans	(14,344)	(40,713)	(23,696)
Net cash (used in) provided by financing activities	(8,245)	70,533	(14,306)
Effect of foreign exchange rate changes on cash	(4,074)	710	395
Net (decrease) increase in cash and cash equivalents	(8,877)	9,666	8,369
Cash and cash equivalents at beginning of period	42,897	33,231	24,862
Cash and cash equivalents at end of period	$ 34,020	$ 42,897	$ 33,231