Note 15 - Summary of Quarterly Results (Unaudited) (Details) - Statement of Operations Data: (USD $) In Thousands, except Per Share data, unless otherwise specified	12 Months Ended
	Jun. 30, 2013		Jun. 30, 2012		Jun. 30, 2011		Jun. 30, 2010		Jun. 30, 2009
Statement of Operations Data: [Abstract]
Net sales	$ 280,790	[1]	$ 268,402	[1]	$ 293,501	[1]	$ 254,402		$ 233,799
Cost of products and services sold	220,380		208,089		221,156		198,030		181,972
Loss on sale of a subsidiary							639
Selling and administrative expenses	57,367		53,724		56,041		53,671		51,571
Loss contingency (a)		[2]		[2]		[2]		[2]	200	[2]
Goodwill and intangible asset impairment (b)	2,413	[3]	258	[3]		[3]	153	[3]	14,467	[3]
Operating income (loss)	630		6,331		16,304		1,909		(14,411)
Interest (income)	(47)		(25)		(43)		(28)		(97)
Interest expense	62		165		180		153		89
Income (loss) before income taxes	615		6,191		16,167		1,784		(14,403)
Income taxes	738		2,967		5,339		360		(989)
Net income (loss)	(123)		3,224		10,828		1,424		(13,414)
Basic (in Dollars per share)	$ (0.01)		$ 0.13		$ 0.45		$ 0.06		$ (0.62)
Diluted (in Dollars per share)	$ (0.01)	[4]	$ 0.13	[4]	$ 0.44	[4]	$ 0.06		$ (0.62)
Cash dividends paid per share (in Dollars per share)	$ 0.36		$ 0.23		$ 0.20		$ 0.20		$ 0.30
Basic (in Shares)	24,313		24,298		24,287		24,128		21,800
Diluted (in Shares)	24,385	[4],[5]	24,352	[4],[5]	24,339	[4],[5]	24,134		21,800
Working capital	76,703		83,702		84,524		73,568		72,500
Total assets	169,179		175,226		176,021		173,845		153,118
Long-term debt, including current maturities					1,099		1,132
Shareholders’ equity	141,690		149,368		151,218		144,218		130,473
Net income (loss)	$ (123)		$ 3,224		$ 10,828		$ 1,424		$ (13,414)

[1] Net sales are attributed to geographic areas based upon the location of the operation making the sale.

[2] The Company recorded loss contingency reserves in fiscal year 2009 related to a patent litigation matter.

[3] The Company recorded a significant impairment of goodwill and intangible assets in fiscal 2009 and fiscal 2013, and minor impairments in fiscal 2012 and 2010. See Note 6.

[4] Calculated using the "Treasury Stock" method as if dilutive securities were exercised and the funds were used to purchase common shares at the average market price during the period.

[5] Options to purchase 2,027,450 common shares, 1,782,868 common shares, and 1,881,395 common shares at June 30, 2013, 2012, and 2011, respectively, were not included in the computation of diluted earnings per share because the exercise price was greater than the average fair market value of the common shares.