Note 7. Other Accrued Liabilities (Detail) - Other Accrued Liabilities (USD $)	Sep. 30, 2012	Dec. 31, 2011
Amounts due to Contract Research Organizations and other contractual agreements	$ 2,256,514	$ 1,234,875
Accrued payroll and related benefits	322,713	632,425
Accrued professional fees	108,653	137,400
Other	27,629	27,234
Total	$ 2,715,509	$ 2,031,934