REVENUE RECOGNITION (Details Textual) (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011	Dec. 31, 2011
Minimum Period Of Customer Service Contracts (in years)			1 year
Maximum Period Of Customer Service Contracts (in years)			5 years
Amortization Of Deferred Equipment Revenue	$ 908,000	$ 723,000	$ 2,451,000	$ 1,713,000
Unbilled receivables	$ 0		$ 0		$ 110,000