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Common Stock Offering (Details) (USD $) In Thousands, unless otherwise specified	1 Months Ended	12 Months Ended
	Dec. 31, 2010	Jun. 30, 2011
Common Stock Offering
Initial offering (in shares)	2,500
Over-allotment (in shares)	750
Net proceeds from the combined offering (in dollars)		$ 14,950

The cash inflow associated with the amount received from entity's first offering of stock to the public.

Number of new stock issued during the period.