Subsequent Events (Details) (Subsequent Event [Member], New At The Market Issuance Sales Agreement [Member], M L V And Co L L C [Member], Maximum [Member], USD $) In Millions, unless otherwise specified	1 Months Ended
	Jul. 31, 2014
Subsequent Event [Member] | New At The Market Issuance Sales Agreement [Member] | M L V And Co L L C [Member] | Maximum [Member]
Subsequent Events
Common Stock Aggregate Offering Price	$ 50