Consolidated Statements Of Stockholders' Equity (USD $) In Thousands	Common Stock [Member]	Additional Paid-in Capital [Member]	Accumulated Other Comprehensive Loss [Member]	Accumulated Deficit [Member]	Total
Balances, value at Dec. 31, 2011		$ 1,262,726	$ (1,014)	$ (1,211,942)	$ 49,770
Balances, shares at Dec. 31, 2011	4,529
Net loss				(5,052)	(5,052)
Other comprehensive (loss) income			160		160
Stock-based compensation		612			612
Issuance of common stock from restricted stock award, shares	4
Issuance of common stock from restricted stock award, value	0	0	0	0	0
Issuance of common stock under employee stock purchase plan, shares	52
Issuance of common stock under employee stock purchase plan, value		395			395
Issuance of common stock from exercise of options, shares	100
Issuance of common stock from exercise of options, value		1,772			1,772
Balances, value at Dec. 31, 2012		1,265,505	(854)	(1,216,994)	47,657
Balances, shares at Dec. 31, 2012	4,685				4,685
Net loss				(5,422)	(5,422)
Other comprehensive (loss) income			(2)		(2)
Stock-based compensation		697			697
Issuance of common stock from restricted stock award, shares	6
Issuance of common stock from restricted stock award, value	0	0	0	0	0
Issuance of common stock under employee stock purchase plan, shares	52
Issuance of common stock under employee stock purchase plan, value		382			382
Issuance of common stock from exercise of options, shares	11
Issuance of common stock from exercise of options, value		102			102
Balances, value at Dec. 31, 2013		$ 1,266,686	$ (856)	$ (1,222,416)	$ 43,414
Balances, shares at Dec. 31, 2013	4,754				4,754