Earnings per share (Tables)

6 Months Ended

Jun. 30, 2014

Earnings Per Share [Abstract]

Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]

		Three Months Ended				Six Months Ended
		June 30,				June 30,
(Amounts in thousands, except share and per share amounts)		2014		2013		2014		2013
	Net income	$	16,828	$	13,139	$	32,072	$	27,301
	Weighted average shares outstanding – basic and diluted		5,110,369		5,108,745		5,110,045		5,108,383
	Net income per common share – basic and diluted	$	3.29	$	2.57	$	6.28	$	5.34