Convertible Preferred Stock (Details) (USD $)	Dec. 31, 2014	Dec. 31, 2013
Class of Stock [Line Items]
Par value	$ 225	$ 225
Shares outstanding	22,500	22,500
Liquidation preference	450,000	450,000
Series A $20
Class of Stock [Line Items]
Par value	95
Shares outstanding	9,500
Liquidation preference	190,000
Series D $20
Class of Stock [Line Items]
Par value	130
Shares outstanding	13,000
Liquidation preference	$ 260,000