Segment and Related Information (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Segment and Related Information [Abstract]
Number of reportable segments			2
Number of hours of telephone support for hospitality segment (in hours)			24
Information as to the Company's segments [Abstract]
Revenues	$ 62,085	$ 56,441	$ 117,678	$ 110,617
Operating income (loss)	(543)	(27,160)	680	(25,957)
Other income, net	(366)	(157)	207	(129)
Interest expense	(21)	(67)	(42)	(115)
Income from continuing operations before provision for income taxes	(930)	(27,384)	845	(26,201)
Depreciation and amortization	919	684	1,744	1,388
Capital expenditures	1,988	2,592	3,161	5,630
Revenues by geographic area:
United States	54,205	49,075	102,570	97,025
Other Countries	7,880	7,366	15,108	13,592
Total	62,085	56,441	117,678	110,617
Hospitality [Member]
Information as to the Company's segments [Abstract]
Revenues	36,156	40,183	71,705	77,537
Operating income (loss)	(1,558)	(27,786)	(1,192)	(27,503)
Depreciation and amortization	782	568	1,525	1,157
Capital expenditures	1,885	2,564	3,016	5,547
Revenues by geographic area:
Total	36,156	40,183	71,705	77,537
Government [Member]
Information as to the Company's segments [Abstract]
Revenues	25,929	16,258	45,973	33,080
Operating income (loss)	1,251	865	2,272	1,823
Depreciation and amortization	19	21	38	40
Capital expenditures	0	20	0	20
Revenues by geographic area:
Total	25,929	16,258	45,973	33,080
Other [Member]
Information as to the Company's segments [Abstract]
Operating income (loss)	(236)	(239)	(400)	(277)
Depreciation and amortization	118	95	181	191
Capital expenditures	$ 103	$ 8	$ 145	$ 63