CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY - USD ($) shares in Thousands, $ in Thousands	Common Stock	Capital in Excess of Par Value	Retained Earnings	Accumulated Other Comprehensive Income (Loss)	Total
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 $16, $19 and $100 for June 30, 2013, June 30, 2014 and June 30, 2015, 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 $0.22 per share for June 30, 2013 and $0.24 per share for June 30, 2014 and 2015, 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
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 $16, $19 and $100 for June 30, 2013, June 30, 2014 and June 30, 2015, 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 $0.22 per share for June 30, 2013 and $0.24 per share for June 30, 2014 and 2015, 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
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income			33,483		33,483
Foreign currency translation adjustments				(12,354)	(12,354)
Defined benefit plans, net of tax of $16, $19 and $100 for June 30, 2013, June 30, 2014 and June 30, 2015, respectively				(213)	(213)
Change in fair value of interest rate swaps				99	99
Stock issued pursuant to employee stock incentive plans		77			$ 77
Stock issued pursuant to employee stock incentive plans (in shares)	5				5
Issuance of restricted stock, including dividends and net of forfeitures	$ 2	(2)
Issuance of restricted stock, including dividends and net of forfeitures (in shares)	224
Dividends declared $0.22 per share for June 30, 2013 and $0.24 per share for June 30, 2014 and 2015, respectively			(7,043)		$ (7,043)
Share-based compensation		4,515			4,515
Exercise of stock options	$ 2	1,271			1,273
Exercise of stock options (in shares)	146
Tax benefit from employee stock incentive plans		790			790
Balance at Jun. 30, 2015	$ 292	$ 93,807	$ 167,208	$ (7,096)	$ 254,211
Balance (in shares) at Jun. 30, 2015	29,147