Capital Stock (Details) (USD $)	Dec. 31, 2012	Dec. 31, 2011
Capital Stock (Textual) [Abstract]
Common stock, par value	$ 0.01	$ 0.01
Common stock, shares authorized	50,000,000	50,000,000
Common stock, shares issued	19,513,476	19,408,512
Common stock, shares outstanding	18,255,226	18,150,262
Preferred stock, shares authorized	10,000,000
Preferred stock, par value	$ 0.01
Preferred stock, shares outstanding	0
Series A Preferred Stock [Member]
Capital Stock (Textual) [Abstract]
Preferred stock, shares outstanding	0	0
Preferred stock, shares issued	0
Series B Preferred Stock [Member]
Capital Stock (Textual) [Abstract]
Preferred stock, shares outstanding	0	0
Preferred stock, shares issued	0
Series C Preferred Stock [Member]
Capital Stock (Textual) [Abstract]
Preferred stock, shares outstanding	0	0
Preferred stock, shares issued	0
Series D Preferred Stock [Member]
Capital Stock (Textual) [Abstract]
Preferred stock, shares outstanding	0	0
Preferred stock, shares issued	0
Series E Preferred Stock [Member]
Capital Stock (Textual) [Abstract]
Preferred stock, shares outstanding	0	0
Preferred stock, shares issued	0
Nonvoting Common Stock [Member]
Capital Stock (Textual) [Abstract]
Common stock, shares issued	0
Common stock, shares outstanding	0	0
Junior Preferred Stock [Member]
Capital Stock (Textual) [Abstract]
Preferred stock, shares outstanding	0	0
Preferred stock, shares issued	0