Preferred Stock (Narrative) (Details) - USD ($)	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Class of Stock [Line Items]
Preferred shares authorized	7,500	7,500
Preferred shares issued	32	53
Preferred shares outstanding	32	53
Preferred stock stated value (in dollars per share)	$ 0.0001	$ 0.0001
Accrued dividends	$ 36,000	$ 40,000
Conversion price below this fair value of the common stock (in dollars per share)	$ 1.16
Preferred Stock
Class of Stock [Line Items]
Preferred shares authorized	5,000,000
Common Stock
Class of Stock [Line Items]
Stock issued for conversion of convertible preferred stock, shares	60,497
Series B-1 Preferred Stock
Class of Stock [Line Items]
Preferred shares authorized	100
Preferred shares issued	0
Preferred shares outstanding	0
Series D Preferred Stock
Class of Stock [Line Items]
Preferred shares authorized	4,000
Preferred shares issued	0
Preferred shares outstanding	0
Series A-2 Preferred Stock
Class of Stock [Line Items]
Preferred shares authorized	7,500
Preferred shares issued	32
Preferred shares outstanding	32
Preferred stock stated value (in dollars per share)	$ 7,500
Stock issued during period, conversion of convertible securities, price	$ 2.9835	$ 2.9844
Convertible preferred stock, shares issued upon conversion	2,514
Preferred stock, cumulative dividend percentage rate (per annum)	5.00%
Derivative liability	$ 0
Series A-2 Preferred Stock | Preferred Stock
Class of Stock [Line Items]
Conversion of stock, shares converted	21
Convertible preferred dividends, net of tax	$ 22,000
Stock issued for conversion of convertible preferred stock, shares	21