Subsequent Events (Details) - Jul. 31, 2015 - Series B Preferred Stock [Member] - Subsequent Event [Member] - USD ($) $ in Millions	Total
Subsequent Events (Details) [Line Items]
Rights Offering, Expected Proceeds	$ 10.4
Preferred Stock, Dividend Rate, Percentage	5.00%

The percentage rate used to calculate dividend payments on preferred stock.

No definition available.

Name:	us-gaap_PreferredStockDividendRatePercentage
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration