Capital Raise (Details) (USD $)	1 Months Ended	6 Months Ended		1 Months Ended
	Jun. 26, 2012	Jun. 30, 2012	Jun. 30, 2011	Jul. 31, 2012 Subsequent event [Member] Issuance of equity [Member]
Class of Stock [Line Items]
Issuance of stock, shares	485,788			176
Average share price	$ 15.01
Gross proceeds from issuance of common stock		$ 7,290,000
Net proceeds from issuance of common stock		$ 6,915,000	$ 0	$ 3,000