Note 13 - Commitments and Contingencies (Detail) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011
Operating Leases, Rent Expense, Net	$ 0.7	$ 0.7
Severance Costs	2.5
Purchase Commitment, Remaining Minimum Amount Committed	2.3
Long-term Purchase Commitment, Amount	2.6
Executive Officer [Member]
Loss Contingency, Estimate of Possible Loss	$ 1.5