Consolidated Statements of Changes in Stockholders' Equity (USD $)	Total	Common Stock [Member]	Additional Paid-in Capital [Member]	Accumulated Deficit [Member]	Accumulated Other Comprehensive (Loss) Income [Member]	Treasury Stock [Member]
Balance at Dec. 31, 2010	$ 44,745,000	$ 121,000	$ 105,156,000	$ (49,470,000)	$ (37,000)	$ (11,025,000)
Balance (in shares) at Dec. 31, 2010		12,491,000
Net loss	(4,040,000)			(4,040,000)
Foreign currency translation adjustment	(4,000)				(4,000)
Unrealized gain (loss) on investments	(8,000)				(8,000)
Shares repurchased	(1,050,000)					(1,050,000)
Shares purchased by Avis - issued from treasury stock	4,605,000		(4,789,000)			9,394,000
Warrants issued to Avis	137,000		137,000
Shares issued pursuant to exercise of stock options	74,000	0	74,000
Shares issued pursuant to exercise of stock options (in shares)	32,000	32,000
Shares withheld pursuant to exercise of stock options	(47,000)					(47,000)
Issuance of restricted stock (in shares)		63,000
Forfeiture of restricted shares	0	0	0	0	0	0
Forfeiture of restricted shares (in shares)		(40,000)
Stock based compensation - restricted stock	370,000		370,000
Stock based compensation - options and performance shares	818,000		818,000
Balance at Dec. 31, 2011	45,600,000	121,000	101,766,000	(53,510,000)	(49,000)	(2,728,000)
Balance (in shares) at Dec. 31, 2011		12,546,000
Net loss	(2,592,000)			(2,592,000)
Foreign currency translation adjustment	6,000				6,000
Unrealized gain (loss) on investments	96,000				96,000
Shares repurchased	(193,000)					(193,000)
Shares issued pursuant to exercise of stock options	216,000	1,000	215,000
Shares issued pursuant to exercise of stock options (in shares)	56,000	56,000
Issuance of restricted stock	0	0	0	0	0	0
Issuance of restricted stock (in shares)		76,000
Shares withheld pursuant to exercise of stock option and restricted stock	(260,000)					(260,000)
Stock based compensation - restricted stock	510,000		510,000
Stock based compensation - options and performance shares	644,000		644,000
Balance at Dec. 31, 2012	44,027,000	122,000	103,135,000	(56,102,000)	53,000	(3,181,000)
Balance (in shares) at Dec. 31, 2012		12,678,000
Net loss	(7,499,000)			(7,499,000)
Foreign currency translation adjustment	(77,000)				(77,000)
Unrealized gain (loss) on investments	(82,000)				(82,000)
Shares issued pursuant to exercise of stock options	227,000	1,000	226,000
Shares issued pursuant to exercise of stock options (in shares)	67,000	67,000
Issuance of restricted stock	0	0	0	0	0	0
Issuance of restricted stock (in shares)		101,000
Forfeiture of restricted shares	0	0	0	0	0	0
Forfeiture of restricted shares (in shares)		(11,000)
Shares withheld pursuant to exercise of stock option and restricted stock	(265,000)					(265,000)
Stock based compensation - restricted stock	527,000		527,000
Stock based compensation - options and performance shares	591,000		591,000
Balance at Dec. 31, 2013	$ 37,449,000	$ 123,000	$ 104,479,000	$ (63,601,000)	$ (106,000)	$ (3,446,000)
Balance (in shares) at Dec. 31, 2013		12,835,000