Segment and Related Information (Details) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015 USD ($)	Sep. 30, 2014 USD ($)	Sep. 30, 2015 USD ($) Segment h	Sep. 30, 2014 USD ($)
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	$ 58,060	$ 52,622	$ 172,206	$ 158,580
Operating income (loss)	1,920	1,367	4,512	1,924
Other income (loss), net	128	(65)	(58)	225
Interest expense	(81)	(21)	(252)	(63)
Income from continuing operations before provision for income taxes	1,967	1,281	4,202	2,086
Depreciation, amortization and accretion	869	452	2,282	1,291
Capital expenditures including software costs	1,152	773	2,984	2,363
United States [Member] | Reportable Geographical Components [Member]
Information as to the Company's segments [Abstract]
Revenues	49,810	46,110	151,858	140,610
Other Countries [Member] | Reportable Geographical Components [Member]
Information as to the Company's segments [Abstract]
Revenues	8,250	6,512	20,348	17,970
Hospitality [Member] | Reportable Segments [Member]
Information as to the Company's segments [Abstract]
Revenues	36,019	32,490	104,768	95,220
Operating income (loss)	853	665	1,235	(451)
Depreciation, amortization and accretion	745	373	1,998	1,045
Capital expenditures including software costs	1,068	645	2,803	1,742
Government [Member] | Reportable Segments [Member]
Information as to the Company's segments [Abstract]
Revenues	22,041	20,132	67,438	63,360
Operating income (loss)	1,383	1,256	3,915	3,706
Depreciation, amortization and accretion	13	12	38	37
Capital expenditures including software costs	0	10	0	36
Other [Member]
Information as to the Company's segments [Abstract]
Operating income (loss)	(316)	(554)	(638)	(1,331)
Depreciation, amortization and accretion	111	67	246	209
Capital expenditures including software costs	$ 84	$ 118	$ 181	$ 585