Marketable Securities (Tables)

6 Months Ended

Jun. 30, 2012

Marketable Securities [Abstract]

Marketable securities [Table Text Block]

				Gross		Gross
				Unrealized		Unrealized
(dollars in thousands)		Amortized		Holding		Holding		Fair
June 30, 2012		Cost		Gains		Losses		Value
Available-for-sale:
Level 1
Equity securities	$	1,136	$	8,311	$	---	$	9,447
Level 2
Municipal bonds		71,716		1,450		19		73,147
	$	72,852	$	9,761	$	19	$	82,594

				Gross		Gross
				Unrealized		Unrealized
(dollars in thousands)		Amortized		Holding		Holding		Fair
December 31, 2011		Cost		Gains		Losses		Value
Available-for-sale:
Level 1
Equity securities	$	1,713	$	7,735	$	---	$	9,448
Level 2
Municipal bonds		78,388		1,512		---		79,900
	$	80,101	$	9,247	$	---	$	89,348

Maturities of marketable securities classified as available-for-sale at June 30, 2012 [Table Text Block]

		Amortized		Fair
(dollars in thousands)		Cost		Value
Available-for-sale:
Due within one year	$	1,508	$	1,489
Due after one year through five years		48,397		48,438
Due after five years through ten years		19,813		21,221
Due after ten years		1,998		1,999
Equity securities		1,136		9,447
	$	72,852	$	82,594