Note 8. Other Accrued Liabilities (Detail) - Other Accrued Liabilities (USD $)	Jun. 30, 2012	Dec. 31, 2011
Amounts due to Contract Research Organizations and other contractual agreements	$ 1,477,514	$ 1,234,875
Accrued payroll and related benefits	314,209	632,425
Accrued professional fees	71,097	137,400
Other	27,592	27,234
Total	$ 1,890,412	$ 2,031,934