2014 Public Offering (Details Textual) (USD $) In Millions, except Share data, unless otherwise specified	0 Months Ended	3 Months Ended
	Jul. 02, 2014	Mar. 31, 2015	Dec. 31, 2014	Jun. 27, 2014
Common stock, par value (in dollars per share)		0.01	$ 0.01
Public Offering [Member]
Public Offering, Shares Authorized				4,650,000
Common stock, par value (in dollars per share)				$ 0.01
Share Price (in dollars per share)	$ 5.00			$ 5.00
Stock Issued During Period, Shares, New Issues	5,347,500
Proceeds from Issuance of Common Stock (in dollars)	$ 24.9
Public Offering [Member] | Underwriter [Member]
Stock Issued During Period, Shares, New Issues		697,500