Note 15 - Summary of Quarterly Results (Unaudited) (Details) - Quarterly Results (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
2013
Net sales (in Dollars)	$ 280,790	[1]	$ 268,402	[1]	$ 293,501	[1]	$ 254,402	$ 233,799
Gross profit (in Dollars)	60,410		60,313		72,345
Net income (loss) (in Dollars)	(123)		3,224		10,828		1,424	(13,414)
Earnings (loss) per share
Basic	$ (0.01)		$ 0.13		$ 0.45		$ 0.06	$ (0.62)
Diluted	$ (0.01)	[2]	$ 0.13	[2]	$ 0.44	[2]	$ 0.06	$ (0.62)
Quarter Ended September 30 [Member]
2013
Net sales (in Dollars)	74,719		65,495		79,851
Gross profit (in Dollars)	17,871		15,464		20,622
Net income (loss) (in Dollars)	1,830		1,324		4,268
Earnings (loss) per share
Basic	$ 0.08		$ 0.05		$ 0.18
Diluted	$ 0.08		$ 0.05		$ 0.18
Quarter Ended December 31 [Member]
2013
Net sales (in Dollars)	71,082		68,774		74,805
Gross profit (in Dollars)	13,882		14,926		18,647
Net income (loss) (in Dollars)	(2,450)		772		2,948
Earnings (loss) per share
Basic	$ (0.10)		$ 0.03		$ 0.12
Diluted	$ (0.10)		$ 0.03		$ 0.12
Quarter Ended March 31 [Member]
2013
Net sales (in Dollars)	66,152		62,937		64,628
Gross profit (in Dollars)	13,921		13,316		16,324
Net income (loss) (in Dollars)	(315)		(377)		2,115
Earnings (loss) per share
Basic	$ (0.01)		$ (0.02)		$ 0.09
Diluted	$ (0.01)		$ (0.02)		$ 0.09
Quarter Ended June 30 [Member]
2013
Net sales (in Dollars)	68,837		71,196		74,217
Gross profit (in Dollars)	14,736		16,607		16,752
Net income (loss) (in Dollars)	812		1,505		1,497
Earnings (loss) per share
Basic	$ 0.03		$ 0.06		$ 0.06
Diluted	$ 0.03		$ 0.06		$ 0.06
Fiscal Year [Member]
2013
Net sales (in Dollars)	280,790		268,402		293,501
Gross profit (in Dollars)	60,410		60,313		72,345
Net income (loss) (in Dollars)	$ (123)		$ 3,224		$ 10,828
Earnings (loss) per share
Basic	$ (0.01)	[3]	$ 0.13	[3]	$ 0.45
Diluted	$ (0.01)	[3]	$ 0.13	[3]	$ 0.44	[3]
Maximum [Member] | Quarter Ended September 30 [Member]
Range of share prices
Share prices	$ 7.42		$ 8.91		$ 6.46
Maximum [Member] | Quarter Ended December 31 [Member]
Range of share prices
Share prices	$ 7.38		$ 7.04		$ 9.61
Maximum [Member] | Quarter Ended March 31 [Member]
Range of share prices
Share prices	$ 7.77		$ 7.70		$ 8.79
Maximum [Member] | Quarter Ended June 30 [Member]
Range of share prices
Share prices	$ 8.46		$ 7.64		$ 8.62
Maximum [Member] | Fiscal Year [Member]
Range of share prices
Share prices	$ 8.46		$ 8.91		$ 9.61
Minimum [Member] | Quarter Ended September 30 [Member]
Range of share prices
Share prices	$ 6.19		$ 5.93		$ 4.69
Minimum [Member] | Quarter Ended December 31 [Member]
Range of share prices
Share prices	$ 6.10		$ 5.45		$ 6.38
Minimum [Member] | Quarter Ended March 31 [Member]
Range of share prices
Share prices	$ 6.80		$ 5.85		$ 6.86
Minimum [Member] | Quarter Ended June 30 [Member]
Range of share prices
Share prices	$ 6.78		$ 5.81		$ 6.90
Minimum [Member] | Fiscal Year [Member]
Range of share prices
Share prices	$ 6.10		$ 5.45		$ 4.69

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

[2] 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.

[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.