Note 8 - Debt (Details) - Summary of Debt Components (USD $) In Thousands, unless otherwise specified	Jun. 30, 2014	Dec. 31, 2013
Debt Instrument [Line Items]
Discounts on long-term debt		$ (2,368)
Subtotal	264	4,070
Less: Current maturies of long-term debt	(62)	(59)
Long-term debt	202	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	194	223
Unsecured Promissory Note - Quercus Trust [Member]
Debt Instrument [Line Items]
Debt Instruments	$ 70	$ 70

Amount of long-term debt before deduction of unamortized discount or premium. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt, with initial maturities beyond one year or the normal operating cycle, if longer.

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- Definition

The amount of debt discount that was originally recognized at the issuance of the instrument that has yet to be amortized.

+ References

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Carrying amount of long-term debt, net of unamortized discount or premium, including current and noncurrent amounts. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

+ References

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Amount of long-term debt, after unamortized discount or premium, scheduled to be repaid within one year or the normal operating cycle, if longer. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

+ References

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Carrying amount of long-term debt, net of unamortized discount or premium, excluding amounts to be repaid within one year or the normal operating cycle, if longer (current maturities). Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

+ References

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