3. Income per share (Tables)

9 Months Ended

Sep. 30, 2014

Earnings Per Share [Abstract]

Computation for Basic and Diluted Income Per Share

The following is the computation for basic and diluted income per share:

	Three Months Ended September 30,				Nine months Ended September 30,
	2014		2013		2014		2013
	(in thousands, except per share amounts)
Net income	$	7,685	$	7,673	$	21,768	$	20,813
Weighted average basic shares outstanding		1,949		2,007		1,964		2,014
Add:  Effect of dilutive securities		17		9		16		5
Weighted average diluted shares outstanding		1,966		2,016		1,980		2,019
Earnings per share:
Basic	$	3.94	$	3.82	$	11.08	$	10.33
Diluted	$	3.91	$	3.81	$	10.99	$	10.31