Accumulated Comprehensive Margin (Tables)

6 Months Ended

Jun. 30, 2013

Accumulated Comprehensive Margin

Schedule of changes in accumulated other comprehensive margin (deficit)

	Accumulated Other Comprehensive Margin Three Months Ended
		(dollars in thousands)
		Available-for-sale Securities
Balance at March 31, 2012	$	1,327
Unrealized gain		119
Balance at June 30, 2012	$	1,446
Balance at March 31, 2013	$	691
Unrealized (loss)		(1,074	)
(Gain) reclassified to net margin		(16	)
Balance at June 30, 2013	$	(399	)

	Accumulated Other Comprehensive Margin (Deficit) Six Months Ended
		(dollars in thousands)
		Available-for-sale Securities
Balance at December 31, 2011	$	618
Unrealized gain		911
(Gain) reclassified to net margin		(83	)
Balance at June 30, 2012	$	1,446
Balance at December 31, 2012	$	903
Unrealized (loss)		(1,222	)
(Gain) reclassified to net margin		(80	)
Balance at June 30, 2013	$	(399	)