9. Other accrued expenses and other liabilities (Details) (USD $)	Sep. 30, 2012	Dec. 31, 2011
Accounts Payable and Accrued Liabilities
Professional fees	$ 694,710	$ 494,767
Payroll related	876,372	640,208
Estimated damage liability that may not be covered by insurance	300,000
Accrued board fees	285,365
Consultant fees	205,129	227,178
Accrued legal judgments	84,899	90,732
Travel expenses	69,866	38,546
Other	65,777	49,884
Total Accounts Payable and Accrued Liabilities	$ 2,582,118	$ 1,541,315