Note 8 - Discontinued Operations (Detail) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011
Discontinued Operation, Gain (Loss) on Disposal of Discontinued Operation, Net of Tax	$ (157)	$ (1,703)
Accrued Liabilities And Other [Member]
Discontinued Operation, Accrued Legal Fees	142
Discontinued Operation, Amounts of Material Contingent Liabilities Remaining	$ 83