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Note 7 - Other Accrued Liabilities (Details) - Other Accrued Liabilities (USD $)	Jun. 30, 2013	Dec. 31, 2012
Other Accrued Liabilities [Abstract]
Amounts due to contract research organizations and other contractual agreements	$ 1,196,312	$ 827,989
Accrued payroll and related benefits	450,790	338,365
Accrued professional fees	56,400	37,400
Accrued interest on notes payable	46,120	0
Other	33,345	51,225
Total	$ 1,782,967	$ 1,254,979

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