Basis of Presentation (Details) Debt (USD $)	3 Months Ended
	Mar. 31, 2013	Dec. 31, 2012
Line of Credit Facility [Line Items]
Debt covenant terms, minimum gross bookings	$ 9,100,000
Debt covenant terms, minimum customer license renewal rate	85.00%
Debt covenant terms, minimum cash balance held at lender bank	1,000,000
Debt covenant terms, maximum period after year end to produce audited financial statements	120 days
Other	15,000
Debt	158,810,000	141,008,000
Construction Loans
Line of Credit Facility [Line Items]
Line of credit, amount outstanding	88,008,000	89,500,000
Construction Loans for Working Capital
Line of Credit Facility [Line Items]
Line of credit, amount outstanding	8,000,000	5,000,000
Subsidiaries, Spigit
Line of Credit Facility [Line Items]
Interest rate at period end	5.75%
Line of credit, amount outstanding	8,039,000
Subsidiaries, Spigit | Line of Credit
Line of Credit Facility [Line Items]
Basis spread on prime rate	2.50%
3.7% Loan Due in 2014 | Swiss Bank Loan
Line of Credit Facility [Line Items]
Line of credit, amount outstanding	13,164,000	13,655,000
3.8% Loan Due in 2014 | Swiss Bank Loan
Line of Credit Facility [Line Items]
Line of credit, amount outstanding	3,160,000	3,277,000
4% to 4.5% Loan Due Through 2014 | Mortgages
Line of Credit Facility [Line Items]
Mortgages	5,508,000	5,551,000
5% Loan Due from 2014 to 2016 | Mortgages
Line of Credit Facility [Line Items]
Mortgages	5,116,000	425,000
6% to 6.5% Loan Due Through 2036 | Mortgages
Line of Credit Facility [Line Items]
Mortgages	19,732,000	15,531,000
8% Loan Due Through 2013 | Mortgages
Line of Credit Facility [Line Items]
Mortgages	464,000	464,000
10% Loan Due Through 2013 | Mortgages
Line of Credit Facility [Line Items]
Mortgages	$ 7,604,000	$ 7,605,000