Note 8 - Debt (Details) - Summary of Debt Components (USD $) In Thousands, unless otherwise specified	Mar. 31, 2014	Dec. 31, 2013
Debt Instrument [Line Items]
Discounts on long-term debt		$ (2,368)
Subtotal	279	4,070
Less: Current maturies of long-term debt	(61)	(59)
Long-term debt, net	218	4,011
Unsecured Convertible Notes [Member]
Debt Instrument [Line Items]
Debt Instruments		6,145
Cognovit Note - Keystone Ruby, LLC [Member]
Debt Instrument [Line Items]
Debt Instruments	209	223
Unsecured Promissory Note - Quercus Trust [Member]
Debt Instrument [Line Items]
Debt Instruments	$ 70	$ 70