Business Combinations (Pro Forma) (Details) (USD $)	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Business Acquisition, Pro Forma Information
Revenue	$ 51,004,000	$ 47,716,000	$ 103,570,000	$ 91,543,000
Net income	13,542,000	18,067,000	30,886,000	33,752,000
Basic EPS	$ 0.36	$ 0.49	$ 0.83	$ 0.92
Diluted EPS	$ 0.35	$ 0.47	$ 0.80	$ 0.86
Parent, ADAM, Planetsoft, BSI, Taimma, Fintechnix, TriSystems , Combined [Member] [Domain]
Business Acquisition, Pro Forma Information
Revenue, pro forma	51,004,000	54,072,000	104,479,000	105,375,000
Net income, pro forma	13,542,000	15,347,000	29,577,000	27,076,000
Basic EPS, pro forma	$ 0.36	$ 0.42	$ 0.80	$ 0.73
Diluted EPS, pro forma	$ 0.35	$ 0.39	$ 0.76	$ 0.69
Business Acquisition, Pro Forma Revenue, Increase (Decrease)	(3,100,000)		(900,000)
Business Acquisition, Pro Forma Revenue, Increase (Decrease), Percentage	(5.70%)		(0.90%)
Revenue, Net, Increase (Decrease)	$ 3,300,000		$ 12,000,000
Revenue, Net, Increase (Decrease), Percentage	6.90%		13.10%