Condensed Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Sep. 30, 2014	Sep. 30, 2013
Operating activities:
Net income	$ 4,671	$ 6,552
Adjustments to reconcile net income to net cash provided (used) by operating activities:
Depreciation and amortization	5,771	3,720
Deferred income tax	(1,994)	(111)
Gain on sale of property, plant and equipment	(122)	(36)
Provision for uncollectible accounts	465	(13)
Stock-based compensation expense	1,457	1,087
Excess Tax Benefit from Share-based Compensation, Operating Activities	(660)	(4)
Other	59	49
Changes in operating assets and liabilities increasing (decreasing) cash, net of effects from acquisitions:
Accounts receivable	30,379	(9,620)
Costs and estimated earnings in excess of billings on uncompleted contracts	(16,811)	7,095
Inventories	39	(184)
Other assets and liabilities	10,726	(1,044)
Accounts payable	(17,531)	(1,111)
Billings on uncompleted contracts in excess of costs and estimated earnings	(4,732)	12,935
Accrued expenses	(6,605)	(865)
Net cash provided by operating activities	5,112	18,450
Investing activities:
Acquisition of property, plant and equipment	(3,656)	(5,763)
Acquisition, net of cash acquired	(5,250)	0
Proceeds from asset sales	148	279
Net cash used by investing activities	(8,758)	(5,484)
Financing activities:
Issuances of common stock	193	356
Excess tax benefit of exercised stock options and vesting of deferred shares	660	4
Advances under credit agreement	5,817	8,975
Repayments of advances under credit agreement	(6,094)	(6,549)
Proceeds received for treasury shares sold to Employee Stock Purchase Plan	58	18
Treasury shares purchased from employees to satisfy tax withholding obligations	(913)	(4)
Net cash provided (used) by financing activities	(279)	2,800
Effect of exchange rate changes on cash	(436)	246
Net increase (decrease) in cash and cash equivalents	(4,361)	16,012
Cash and cash equivalents, beginning of period	77,115	63,750
Cash and cash equivalents, end of period	72,754	79,762
Supplemental disclosure of cash flow information:
Income taxes	(1,972)	58
Interest	524	146
Non-cash investing and financing activities:
Purchases of property, plant and equipment on account	$ 370	$ 1,095