Note 11 - Restructuring Cost Activity (Detail) - Lease Termination Restructuring Accrual And Related Costs (USD $)	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Facility Closing [Member]
Balance at beginning of Period	$ 524	$ 1,032	$ 626	$ 1,229
Provision for additional expense	176	249	202	249
Payments and adjustments	(117)	(138)	(245)	(335)
Period End [Member]
Balance at end of period	$ 583	$ 1,143	$ 583	$ 1,143