6 - Vendor Settlements, Contingent Gains and Gain of Forgiveness of Debt (Detail) (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011	Dec. 31, 2011
Gains (Losses) on Extinguishment of Debt	$ 216,000	$ 1,087,000	$ 329,000	$ 3,009,000
Write-off of accounts payable, description			write-off accounts payable with written contract more than four years old with no current activity and two years when there is no written agreement	two
Other Nonoperating Income (Expense)	0	527,000	293,000	865,000
Other Liabilities	2,531,000		2,531,000		3,184,000
Loss Contingency			$ 837,000
Loss Contingency, Settlement Agreement, Terms			The settlements will be paid in periods ranging from one to fifty one months with an aggregate current monthly payment of approximately $92,000.