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Summary Of Significant Accounting Policies Allowance for Doubtful Accounts (Details) (USD $)	9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011
Allowance for Doubtful Accounts Receivable [Roll Forward]
Balance, beginning of year	$ 203,000	$ 0
Additions to allowance	12,000	203,000
Balance, quarter ended	215,000	203,000
Loss from discontinued operations
Allowance for Doubtful Accounts Receivable [Roll Forward]
Additions to allowance	$ 0	$ 200,000

Amount of the current period expense charged against operations, the offset which is generally to the allowance for doubtful accounts for the purpose of reducing receivables, including notes receivable, to an amount that approximates their net realizable value (the amount expected to be collected).

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