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Stock-Based Compensation; Changes in Equity (Details Textual) (USD $)	3 Months Ended		9 Months Ended					3 Months Ended				3 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012 B M O Equity [Member]	Jul. 17, 2012 B M O Equity [Member]	Jul. 17, 2012 Maximum [Member] B M O Equity [Member]	Sep. 30, 2012 Stock Option Plan 2001 [Member]	Apr. 12, 2001 Stock Option Plan 2001 [Member]	Sep. 30, 2012 Stock Option Plan 2002 [Member]	Apr. 24, 2002 Stock Option Plan 2002 [Member]	Sep. 30, 2012 Stock Option Plan 2007 [Member]	Apr. 30, 2007 Stock Option Plan 2007 [Member]	Sep. 30, 2012 Stock Option Plan 2009 [Member]	Apr. 10, 2009 Stock Option Plan 2009 [Member]
Common Stock, Dividend Rate, Percentage			1.14%
Allocated Share-based Compensation Expense	$ 22,000	$ 34,000	$ 66,000	$ 104,000
Employee Service Share-based Compensation, Nonvested Awards, Total Compensation Cost Not yet Recognized	131,000		131,000
Expected Recognized Compensation Expenses, Reminder Of 2012			22,000
Expected Recognized Compensation Expenses, Year 2013			59,000
Expected Recognized Compensation Expenses, Year 2014			41,000
Expected Recognized Compensation Expenses, Year 2015			9,000
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized									119,050		142,860		150,000		250,000
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant								139,958		123,430		165,750		82,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Number								4,500		27,500		14,500		80,500
Dividends per share (in dollars per share)	$ 0	$ 0.05	$ 0	$ 0.05
Shares under Option, Exercised (in shares)			(32,000)					3,000				15,500
Share-based Compensation Arrangement by Share-based Payment Award, Options, Expirations in Period												2,500
Note And Warrant Purchase Agreement Initation Date					Jul. 17, 2012
Related Party Transaction, Due from (to) Related Party						$ 5,000,000
Warrants Issued To Purchase Common Stock Percentage							4.00%
Weighted Average Number Of Shares Outstanding, Diluted	3,353,267	3,178,444	3,269,941	3,187,871	140,048
Earnings Per Share, Diluted	$ 0.00	$ 0.01	$ 0.10	$ 0.10	$ 0.01
Loan Agreement Term					5 years 6 months
Debt Instrument, Interest Rate, Stated Percentage						11.50%

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