Segment and Related Information (Details) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015 USD ($)	Jun. 30, 2014 USD ($)	Jun. 30, 2015 USD ($) Segment h	Jun. 30, 2014 USD ($)
Segment and Related Information [Abstract]
Number of reportable segments | Segment			2
Number of hours of telephone support for hospitality segment (in hours) | h			24
Information as to the Company's segments [Abstract]
Revenues	$ 63,292	$ 57,402	$ 122,916	$ 113,943
Operating income (loss)	605	(1,013)	(64)	(2,127)
Other (expense) income, net	(10)	406	(239)	328
Interest expense	(85)	(25)	(171)	(42)
Income (loss) before (provision for) benefit from income taxes	510	(632)	(474)	(1,841)
Depreciation, amortization and accretion	1,167	831	2,310	1,661
Capital expenditures including software costs	1,463	1,116	2,388	2,697
United States [Member] | Reportable Geographical Components [Member]
Information as to the Company's segments [Abstract]
Revenues	53,954	49,771	107,207	99,326
Other Countries [Member] | Reportable Geographical Components [Member]
Information as to the Company's segments [Abstract]
Revenues	9,338	7,631	15,709	14,617
Hospitality [Member] | Reportable Segments [Member]
Information as to the Company's segments [Abstract]
Revenues	41,731	37,873	77,519	70,715
Operating income (loss)	(634)	(1,765)	(2,275)	(3,826)
Depreciation, amortization and accretion	1,088	749	2,150	1,494
Capital expenditures including software costs	1,426	767	2,291	2,208
Government [Member] | Reportable Segments [Member]
Information as to the Company's segments [Abstract]
Revenues	21,561	19,529	45,397	43,228
Operating income (loss)	1,288	962	2,533	2,449
Depreciation, amortization and accretion	13	12	25	25
Capital expenditures including software costs	0	0	0	26
Other [Member]
Information as to the Company's segments [Abstract]
Operating income (loss)	(49)	(210)	(322)	(750)
Depreciation, amortization and accretion	66	70	135	142
Capital expenditures including software costs	$ 37	$ 349	$ 97	$ 463