Stock-based compensation (Tables)

6 Months Ended

Jun. 30, 2013

Schedule Of Share Based Compensation Shares Authorized Under Stock Option Plans By Exercise Price Range Text Block

	(Not in thousands)
Exercise price range per share					Options outstanding	Weighted-average exercise price of options outstanding		Weighted-average remaining life of options outstanding in years	Options exercisable (fully vested)	Weighted-average exercise price of options exercisable
$	185.00	-	$	185.00	1,536	$	185.00	0.11	1,536	$	185.00
$	201.75	-	$	272.00	101,755	$	253.34	1.02	101,755	$	253.34
$	185.00	-	$	272.00	103,291	$	252.32	1.01	103,291	$	252.32

Schedule Of Share Based Compensation Stock Options Activity Table Text Block

(Not in thousands)	Options Outstanding		Weighted-Average Exercise Price
Outstanding at December 31, 2011	206,946	$	207.83
Granted	-		-
Exercised	-		-
Forfeited	-		-
Expired	(45,960)		155.68
Outstanding at December 31, 2012	160,986	$	222.71
Granted	-		-
Exercised	-		-
Forfeited	-		-
Expired	(57,695)		169.70
Outstanding at June 30, 2013	103,291	$	252.32

Management Member

Schedule of Unvested Restricted Stock Units Roll Forward [Table Text Block]

(Not in thousands)	Restricted Stock		Weighted-Average Grant Date Fair Value
Non-vested at December 31, 2011	241,934	$	31.98
Granted	359,427		17.72
Vested	(96,353)		37.61
Forfeited	(13,785)		26.59
Non-vested at December 31, 2012	491,223	$	20.59
Granted	229,131		28.20
Vested	(130,129)		31.22
Forfeited	(804)		18.40
Non-vested at June 30, 2013	589,421	$	21.21

Director Member

Schedule of Unvested Restricted Stock Units Roll Forward [Table Text Block]

(Not in thousands)	Restricted Stock		Weighted-Average Grant Date Fair Value
Non-vested at December 31, 2011	-		-
Granted	41,174	$	16.37
Vested	(41,174)		16.37
Forfeited	-		-
Non-vested at December 31, 2012	-		-
Granted	17,186	$	29.33
Vested	(17,186)		29.33
Forfeited	-		-
Non-vested at June 30, 2013	-		-