Stock Options Narrative (Details) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Employee Stock Ownership Plan (ESOP) Disclosures [Line Items]
intrinsic value of options outstanding and exercisable	$ 143	$ 108	$ 143	$ 108
Options exercised	0	(64,000)	5,000	(124,000)
unrecognized stock-based compensation option			2,748
unrecognized stock-based compensation expensed option upon change in control			2,339
unrecognized stock-based compensation options depending upon change in control			1,000,000
unrecognized stock-based compensation expensed option others			$ 409
Stock Options [Member]
Employee Stock Ownership Plan (ESOP) Disclosures [Line Items]
weighted average period for amortization of option			1 year 10 months 24 days