Note 11 - Accumulated Other Comprehensive Income (Loss) (Detail) - Cumulative balance of each component of accumulated other comprehensive income (loss) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2013	Jun. 30, 2012	Mar. 31, 2012	Jun. 30, 2011	Sep. 30, 2011 Quarter ended Sep 30, 2011 [Member]	Dec. 31, 2011 Quarter ended Dec 31, 2011 [Member]	Mar. 31, 2012 Quarter ended Mar 31, 2012 [Member]	Sep. 30, 2012 Quarter ended Sep 30, 2012 [Member]	Dec. 31, 2012 Quarter ended Dec 31, 2012 [Member]	Mar. 31, 2013 Quarter ended Mar 31, 2013 [Member]
Foreign currency translation adjustment	$ 2,402	$ 2,315	$ 2,310	$ 2,022	$ 141	$ 68	$ 79	$ (30)	$ 44	$ 73
Defined benefit pension plan liability	(5,341)	(5,341)	(2,627)	(2,625)	(2)
Accumulated other comprehensive income (loss)	$ (2,939)	$ (3,026)	$ (317)	$ (603)	$ 139	$ 68	$ 79	$ (30)	$ 44	$ 73