Note 3 - Significant Accounting Policies (Details) - Prepaid Expenses and Other Current Assets (USD $) In Thousands, unless otherwise specified	Jun. 30, 2013	Dec. 31, 2012
Prepaid Expenses and Other Current Assets [Abstract]
Prepaid expenses	$ 30	$ 43
Prepaid insurance	64	53
Other	5	20
Total prepaid expenses and other current assets	$ 99	$ 116