Dividends Payable (Details)	3 Months Ended		6 Months Ended
	Jun. 30, 2015 USD ($)	Jun. 30, 2014 USD ($)	Jun. 30, 2015 USD ($) item	Jun. 30, 2014 USD ($)	Dec. 31, 2014 USD ($)
Dividends Payable
Preferred stock dividends accrued during the period	$ 35,000	$ 34,000	$ 69,000	$ 71,000
Accrued and unpaid dividends	89,000		$ 89,000		$ 20,000
Series 1
Dividends Payable
Preferred stock dividends accrued during the period	$ 13,000
Dividend rate (as a percent)	5.00%
Series 2 preferred stock and Series 3 preferred stock
Dividends Payable
Percentage of additional late fee penalty payable on unpaid dividends			18.00%
Number of outside board members invested in preferred stock | item			1
Period within which entity must cure breach			45 days
Redemption price	$ 1,900,000		$ 1,900,000
Series 2
Dividends Payable
Preferred stock dividends accrued during the period	$ 14,000
Dividend rate (as a percent)	5.00%
Series 3
Dividends Payable
Preferred stock dividends accrued during the period	$ 8,000
Dividend rate (as a percent)	5.00%