Stockholders' Equity (Details 7) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013
Dividends Net of Beneficial Conversion Feature	$ 2,712	$ 2,088
Beneficial Conversion Feature Related to Dividends	347	250
Series A Preferred Stock [Member]
Dividends Net of Beneficial Conversion Feature	82	78
Series B Preferred Stock [Member]
Dividends Net of Beneficial Conversion Feature	1,149	1,044
Series C Preferred Stock [Member]
Dividends Net of Beneficial Conversion Feature	468	433
Beneficial Conversion Feature Related to Dividends	152	191
Series D One Preferred Stock [Member]
Dividends Net of Beneficial Conversion Feature	472	131
Beneficial Conversion Feature Related to Dividends	195	59
Series D Two Preferred Stock [Member]
Dividends Net of Beneficial Conversion Feature	$ 541	$ 402