Segment Information (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2013 Segment		Mar. 31, 2012		Dec. 31, 2012
Segment Reporting Information [Line Items]
Number of operating business units	2
Number of reportable segments	2
Net sales:
Software and other	$ 23,571		$ 22,757
Professional services	12,123		9,440
Maintenance and EDI	27,940		28,781
Total net sales	63,634		60,978
Expenses	54,715		51,187
Segment income (loss)	8,919		9,791
Net corporate/other expenses	12,397	[1]	12,049	[1]
Loss before income taxes	(3,478)		(2,258)
Depreciation and amortization	4,463		4,686
Restructuring and Other One Time Charges	1,229		0
Assets	440,899				436,853
Healthcare [Member]
Segment Reporting Information [Line Items]
Percent of revenue earned by an operating group (in hundredths)	84.00%
Net sales:
Software and other	17,825		19,100
Professional services	8,055		5,899
Maintenance and EDI	27,358		28,316
Total net sales	53,238		53,315
Expenses	44,151		44,129
Segment income (loss)	9,087		9,186
Depreciation and amortization	3,401		3,831
Restructuring and Other One Time Charges	1,229		0
Assets	412,913				412,841
DNA [Member]
Segment Reporting Information [Line Items]
Percent of revenue earned by an operating group (in hundredths)	16.00%
Net sales:
Software and other	5,746		3,657
Professional services	4,068		3,541
Maintenance and EDI	582		465
Total net sales	10,396		7,663
Expenses	10,564		7,058
Segment income (loss)	(168)		605
Depreciation and amortization	1,046		844
Restructuring and Other One Time Charges	0		0
Assets	39,588				33,207
Corporate/Other [Member]
Net sales:
Depreciation and amortization	16		11
Restructuring and Other One Time Charges	0		0
Assets	$ (11,602)				$ (9,195)

[1] Net corporate/other expenses include public company costs, corporate administration expenses, amortization expense which is not attributable to business segments, acquisition-related expenses and net interest expense.