Property and Equipment

3 Months Ended

Mar. 31, 2012

Property and Equipment [Abstract]

Property and Equipment

5. Property and Equipment

Property and equipment consist of the following:

		March 31,			December 31,
	Estimated Useful Life	2012			2011
Cost:
Office furniture and fixtures	5-7 years	$	2,860		$	2,713
Computer equipment and software	3 years		19,362			18,942
Other office equipment	5 years		598			598
Leasehold improvements	Shorter of the term of the lease or useful life of the asset		5,877			5,833
			28,697			28,086
Less accumulated depreciation and amortization			(18,030	)		(16,995	)
Property and equipment, net		$	10,667		$	11,091

Depreciation and amortization expense for property and equipment was as follows:

	Three Months Ended
	March 31,
	2012		2011
Depreciation and amortization expense	$	1,037	$	864