Note 5 - Accrued Liabilities (Details) - Accrued Liabilities (USD $) In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Accrued Liabilities [Abstract]
Payroll, bonus, and benefits	$ 54	$ 141
Legal and consulting	902us-gaap_AccruedProfessionalFeesCurrent	1,300us-gaap_AccruedProfessionalFeesCurrent
Stock-based compensation	275us-gaap_AccruedEmployeeBenefitsCurrent	71us-gaap_AccruedEmployeeBenefitsCurrent
Other accrued expenses	349us-gaap_OtherAccruedLiabilitiesCurrent	226us-gaap_OtherAccruedLiabilitiesCurrent
	$ 1,580us-gaap_AccruedLiabilitiesCurrent	$ 1,738us-gaap_AccruedLiabilitiesCurrent

Carrying value as of the balance sheet date of obligations, excluding pension and other postretirement benefits, incurred through that date and payable for perquisites provided to employees pertaining to services received from them. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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Carrying value as of the balance sheet date of obligations incurred through that date and payable for professional fees, such as for legal and accounting services received. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

+ References+ Details

- Definition

Carrying value as of the balance sheet date of obligations incurred through that date and payable arising from transactions not otherwise specified in the taxonomy. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

+ References+ Details