SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Tables)

3 Months Ended

Mar. 31, 2013

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES [Abstract]

Basis Used to Measure Fair Values of Financial Instruments

The following table summarizes the basis used to measure the fair values of the Company's financial instruments (amounts in thousands):

			Fair Value Measurements at Reporting Date, Using:
			Quoted Prices		Significant
			in Active		Other		Significant
			Markets for		Observable		Unobservable
	March 31,		Identical Items		Inputs		Inputs
Description	2013		(Level 1)		(Level 2)		(Level 3)
Cash and cash equivalents	$	45,863	$	45,863	$	—	$	—
Total assets	$	45,863	$	45,863	$	—	$	—
Purchase consideration payable	$	14,433	$	—	$	—	$	14,433
Total liabilities	$	14,433	$	—	$	—	$	14,433

			Quoted Prices		Significant
			in Active		Other		Significant
			Markets for		Observable		Unobservable
	December 31,		Identical Items		Inputs		Inputs
Description	2012		(Level 1)		(Level 2)		(Level 3)
Cash and cash equivalents	$	40,781	$	40,781	$	—	$	—
Total assets	$	40,781	$	40,781	$	—	$	—
Purchase consideration payable	$	14,208	$	—	$	—	$	14,208
Total liabilities	$	14,208	$	—	$	—	$	14,208