(2) Property and Equipment (Details Narrative) (USD $)	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Property And Equipment Details Narrative
Depreciation expense	$ 2,900,000	$ 3,600,000	$ 4,500,000
Write off of fully depreciated assets and related accumulated depreciation	$ 4,600,000	$ 5,300,000