Note 9 - Accrued Expenses (Details) - Accrued Expenses (USD $)	Sep. 30, 2013	Dec. 31, 2012
Accrued Expenses [Abstract]
Payroll and benefits	$ 2,558,293	$ 2,477,833
Professional fees	389,672	642,853
Clinical trial costs	190,362	102,414
Restructuring costs	208,207	933,732
Other	1,881,865	1,680,212
Total	$ 5,228,399	$ 5,837,044

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).

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Carrying value as of the balance sheet date of the obligations incurred through that date and payable for employees' services provided. 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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- 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