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Dividends and Basic Earnings Per Common Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Dividends and Basic Earnings Per Common Share [Abstract]
Cash dividends	$ 0	$ 0
Earnings per share for the period [Abstract]
Net Income	$ 7,172	$ 6,403
Weighted Average Number of Common Shares Outstanding (in shares)	791,895	785,366
Basic Earnings Per Common Share Amount (in dollars per share)	$ 9.06	$ 8.15

The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period.

The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.