Fair Value Measurements (Tables)

12 Months Ended

Dec. 31, 2012

Fair Value Measurements [Abstract]

Financial assets measured at fair value on a recurring basis

The Company's financial assets measured at fair value on a recurring basis subject to disclosure requirements at December 31, 2012 and 2011 were as follows (in thousands):

	Balance at December 31, 2012		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)
Cash equivalents:
Money market mutual funds	$	249	$	249	$	-
Certificates of deposit		500		-		500
Commercial paper		4,400		-		4,400
Total cash equivalents		5,149		249		4,900
Short-term investments:
Certificates of deposit		3,301		-		3,301
Corporate bonds		1,258		-		1,258
Commercial paper		4,947		-		4,947
Total short-term investments		9,506		-		9,506
Total financial assets measured at fair value	$	14,655	$	249	$	14,406
	Balance at December 31, 2011		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)
Cash equivalents:
Money market mutual funds	$	1,045	$	1,045	$	-
Certificates of deposit		3,100		-		3,100
Commercial paper		6,600		-		6,600
Total cash equivalents		10,745		1,045		9,700
Short-term investments:
Certificates of deposit		3,278		-		3,278
Corporate bonds		2,031		-		2,031
Commercial paper		1,500		-		1,500
Total short-term investments		6,809		-		6,809
Total financial assets measured at fair value	$	17,554	$	1,045	$	16,509