Note 10 - Segment Information (Detail) - Long-lived Assets by Geographic Area (USD $) In Thousands, unless otherwise specified	Jun. 30, 2012		Dec. 31, 2011
Long-lived assets (3):
Total long-lived assets	$ 18,479	[1]	$ 19,593	[1]
United States [Member]
Long-lived assets (3):
Long-lived assets	15,675	[1]	16,719	[1]
EMEA [Member]
Long-lived assets (3):
Long-lived assets	1,545	[1]	1,519	[1]
Other International [Member]
Long-lived assets (3):
Long-lived assets	$ 1,259	[1]	$ 1,355	[1]

[1] Long-lived assets consist of property, plant and equipment, net.