Note 16 - Summary of Quarterly Results (Unaudited) (Detail) - Statement of Operations Data: (USD $) Share data in Thousands, except Per Share data, unless otherwise specified	12 Months Ended
	Jun. 30, 2012		Jun. 30, 2011		Jun. 30, 2010		Jun. 30, 2009		Jun. 30, 2008
Net sales	$ 268,402,000		$ 293,501,000		$ 254,402,000		$ 233,799,000		$ 305,286,000
Cost of products and services sold	208,089,000		221,156,000		198,030,000		181,972,000		224,859,000
Loss on sale of a subsidiary					639,000
Selling and administrative expenses	53,724,000		56,041,000		53,671,000		51,571,000		60,642,000
Loss contingency (a)		[1]		[1]		[1]	200,000	[1]	2,800,000	[1]
Goodwill and intangible asset impairment (b)	258,000	[2]		[2]	153,000	[2]	14,467,000	[2]	27,955,000	[2]
Operating income (loss)	6,331,000		16,304,000		1,909,000		(14,411,000)		(10,970,000)
Interest (income)	(25,000)		(43,000)		(28,000)		(97,000)		(360,000)
Interest expense	165,000		180,000		153,000		89,000		81,000
Income (loss) before income taxes	6,191,000		16,167,000		1,784,000		(14,403,000)		(10,691,000)
Income taxes	2,967,000		5,339,000		360,000		(989,000)		2,357,000
Net income (loss)	3,224,000		10,828,000		1,424,000		(13,414,000)		(13,048,000)
Basic (in Dollars per share)	$ 0.13	[3]	$ 0.45		$ 0.06	[3]	$ (0.62)		$ (0.60)
Diluted (in Dollars per share)	$ 0.13	[3],[4]	$ 0.44	[3],[4]	$ 0.06	[3],[4]	$ (0.62)		$ (0.60)
Cash dividends paid per share (in Dollars per share)	$ 0.23		$ 0.20		$ 0.20		$ 0.30		$ 0.63
Basic (in Shares)	24,298		24,287		24,128		21,800		21,764
Diluted (in Shares)	24,352	[4],[5]	24,339	[4],[5]	24,134	[4],[5]	21,800		21,764
Working capital	83,702,000		84,524,000		73,568,000		72,500,000		72,863,000
Total assets	175,226,000		176,021,000		173,845,000		153,118,000		184,214,000
Long-term debt, including current maturities			1,099,000		1,132,000
Shareholders’ equity	149,368,000		151,218,000		144,218,000		130,473,000		149,190,000
Net income (loss)	$ 3,224,000		$ 10,828,000		$ 1,424,000		$ (13,414,000)		$ (13,048,000)

[1] The Company recorded loss contingency reserves in fiscal years 2009 and 2008 related to a patent litigation matter.See Note 13.

[2] The Company recorded a significant impairment of goodwill and intangible assets in fiscal 2009 and 2008, and minor impairments in fiscal 2012 and 2010. See Note 6.

[3] The total of the earnings per share for each of the four quarters does not equal the total earnings per share for the full year because the calculations are based on the average shares outstanding during each of the individual periods.

[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 1,782,868common shares, 1,881,395 common shares, and 2,046,573 common shares at June 30, 2012, 2011, and 2010, 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.