CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY (USD $) In Thousands, unless otherwise specified	Common Stock	Capital in Excess of Par Value	Retained Earnings	Treasury Stock	Accumulated Other Comprehensive Income	Total
Balance at Jun. 30, 2011	$ 266	$ 62,329	$ 90,713	$ (230)	$ 7,743	$ 160,821
Balance (in shares) at Jun. 30, 2011	26,644			(24)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income			16,981			16,981
Foreign currency translation adjustments					(6,164)	(6,164)
Defined benefit plans, net of tax of $78, $16 and $19 for June 30, 2012, June 30, 2013 and June 30, 2014 respectively					(166)	(166)
Change in fair value of interest rate swaps					(94)	(94)
Stock issued pursuant to employee stock incentive plans		49				49
Stock issued pursuant to employee stock incentive plans (in shares)	8					8
Issuance of restricted stock, including dividends and net of forfeitures	1	(220)		220		1
Issuance of restricted stock, including dividends and net of forfeitures (in shares)	118			23
Dividends declared $0.20 per share, $0.22 per share and $0.24 per share for June 30, 2012, June 30, 2013 and June 30, 2014 respectively			(5,350)			(5,350)
Share-based compensation		1,157				1,157
Exercise of stock options	2	608		10		620
Exercise of stock options (in shares)	167			1
Tax benefit from employee stock incentive plans		148				148
Balance at Jun. 30, 2012	269	64,071	102,344		1,319	168,003
Balance (in shares) at Jun. 30, 2012	26,937
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income			22,328			22,328
Foreign currency translation adjustments					1,447	1,447
Defined benefit plans, net of tax of $78, $16 and $19 for June 30, 2012, June 30, 2013 and June 30, 2014 respectively					(33)	(33)
Change in fair value of interest rate swaps					169	169
Stock issued pursuant to employee stock incentive plans		82				82
Stock issued pursuant to employee stock incentive plans (in shares)	9					9
Issuance of restricted stock, including dividends and net of forfeitures	2	(2)
Issuance of restricted stock, including dividends and net of forfeitures (in shares)	145
Dividends declared $0.20 per share, $0.22 per share and $0.24 per share for June 30, 2012, June 30, 2013 and June 30, 2014 respectively			(6,057)			(6,057)
Share-based compensation		1,777				1,777
Exercise of stock options	7	6,298				6,305
Exercise of stock options (in shares)	740
Tax benefit from employee stock incentive plans		619				619
Balance at Jun. 30, 2013	278	72,845	118,615		2,902	194,640
Balance (in shares) at Jun. 30, 2013	27,831					27,831
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income			29,000			29,000
Foreign currency translation adjustments					2,609	2,609
Defined benefit plans, net of tax of $78, $16 and $19 for June 30, 2012, June 30, 2013 and June 30, 2014 respectively					40	40
Change in fair value of interest rate swaps					(179)	(179)
Stock issued pursuant to employee stock incentive plans		93				93
Stock issued pursuant to employee stock incentive plans (in shares)	7					7
Issuance of restricted stock, including dividends and net of forfeitures	3	(3)
Issuance of restricted stock, including dividends and net of forfeitures (in shares)	282
Stock issued in connection with the PACK acquisition	3	5,682				5,685
Stock issued in connection with the PACK acquisition (in shares)	260
Dividends declared $0.20 per share, $0.22 per share and $0.24 per share for June 30, 2012, June 30, 2013 and June 30, 2014 respectively			(6,847)			(6,847)
Share-based compensation		3,136				3,136
Exercise of stock options	4	3,651				3,655
Exercise of stock options (in shares)	392
Tax benefit from employee stock incentive plans		1,752				1,752
Balance at Jun. 30, 2014	$ 288	$ 87,156	$ 140,768		$ 5,372	$ 233,584
Balance (in shares) at Jun. 30, 2014	28,772					28,772