Schedule of Valuation and Qualifying Accounts

12 Months Ended

Dec. 31, 2011

Schedule of Valuation and Qualifying Accounts Disclosure [Text Block]

	Balance at		Charged		Charged				Balance at
	Beginning		to Costs and		to Other				End of
Description	of Period		Expenses		Accounts		Deductions		Period
Year Ended December 31, 2011
Allowance for doubtful accounts	$	77,000	$	-	$	-	$	23,000	$	54,000
Year Ended December 31, 2010
Allowance for doubtful accounts	$	65,000	$	12,000	$	-	$	-	$	77,000