9. Other accrued expenses and other liabilities (Details) (USD $)	Jun. 30, 2012	Dec. 31, 2011
Accounts Payable and Accrued Liabilities
Professional fees	$ 969,767	$ 494,767
Payroll related	825,983	640,208
Estimated damage liability that may not be covered by insurance	300,000
Accrued board fees	162,497
Consultant fees	154,839	227,178
Accrued legal judgments	90,732	90,732
Travel expenses	70,339	38,546
Other	11,248	49,884
Total Accounts Payable and Accrued Liabilities	$ 2,585,405	$ 1,541,315