Related party transactions (Details) (USD $)	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2010	Dec. 31, 2009	Mar. 21, 2009	Nov. 20, 2007	Jul. 01, 2007	Jul. 01, 2006
Related party transactions
Company made an unsecured loan to ERC in millions							$ 1.4	$ 1,400,000
Annual interest rate of unsecured loan to ERC							8.00%	8.00%
Balance of the two notes and accrued interest (rate of interest 2%)					3,970,897
Company made a loan to PIAMI						630,000
Company made additional net advances on the loan to PIAMI in millions		360,000				6,300,000
Balance due including accrued interest PIAMI in millions				11,100,000
Outstanding principal and interest in millions			10,400,000
Payments from PIAMI		715,000
The Company and several other defendants settled a lawsuit	225,000
Paid the entire amount and has a note receivable from one of the other defendants	112,500
The company has recorded a reserve of $million (the full balance) for the combined note.		10,000,000
Company paid to a consultant and was reimbursed by Arcadian for a portion of his services.	48,800
Company incurred obligations to Pillar totaling to which was reduced by Prime by a like amount approximately $ million	1,600,000
Company incurred obligations to Pillar totaling approximately $ million		2,100,000
Pillar agreed to relieve the Company of its obligation to pay $ million		2,100,000
Company recorded a gain on the transaction $ million		2,100,000
Pillar incurred expenses on behalf of the Company and agreed to forego payment in exchange for a reduction in the PIAMI obligation		$ 715,000