Basis Of Presentation (Details) (USD $)	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011	Dec. 31, 2011	May 31, 2012
Basis Of Presentation [Abstract]
Investments in marketable securities	$ 53,000		$ 53,000		$ 2,900,000
Cumulative unrealized gain (loss) on investments			7,000		(11,000)
Unrealized income (loss) on marketable securities	3,000	(123,000)	(4,000)	(38,000)
Sale of marketable securities			3,000,000
Marketable securities realized gain			109,000
Credit facility outstanding amount	6,500,000		6,500,000
Tax settlement debt payments, monthly			290,000
Tax settlement debt payments, yearly			3,500,000
Cash	30,500,000		30,500,000
Time deposits purchased						$ 8,000,000
Time deposits interest rate						1.26%