Note 5 - Intangible Assets (Details) - Estimated Amortization Expense for Future Years (USD $) In Thousands, unless otherwise specified	Sep. 30, 2013	Dec. 31, 2012
Estimated Amortization Expense for Future Years [Abstract]
2013 October through December	$ 51
2014	55
Total amortization expense	$ 106	$ 608