7. Income Per Share (Tables)

12 Months Ended

Dec. 31, 2015

Earnings Per Share [Abstract]

Computation of Basic and Diluted Income Per Share

	Year ended December 31,
	2015		2014		2013
	(In thousands, except per share amounts)
Net Income	$	28,925	$	27,808	$	26,582
Weighted average basic shares outstanding		1,846		1,958		2,010
Add:  Effect of dilutive securities		24		17		7
Weighted average diluted shares outstanding		1,870		1,975		2,017
Net Income per share
Basic	$	15.67	$	14.20	$	13.22
Diluted	$	15.47	$	14.08	$	13.18