Related party transactions (Details) (USD $)	Sep. 30, 2012	Dec. 31, 2011	May 31, 2008
Amount loaned to PIAMI plus interest accrued		$ 10,300,000	$ 21,000,000
Reserve created for the PIAMI loan		10,300,000
Loan taken from Pillar and settled a law suit		225,000
Total loans from Pillar during 2011 and 2012	1,700,000
Amount settled with Pillar	1,700,000
Gain on settlement of loan from pillar	1,700,000
Loan taken from RAI	$ 1,250,000