Fair Value Measurements (Narrative) (Details) (USD $)	12 Months Ended				12 Months Ended			12 Months Ended				12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2011 Nonrecurring [Member]	Dec. 31, 2012 Software [Member]	Dec. 31, 2011 Software [Member] Nonrecurring [Member]	Dec. 31, 2011 Trade name [Member]	Dec. 31, 2011 Trade name [Member] Nonrecurring [Member]	Dec. 31, 2011 Cloverleaf Communications, Inc. [Member]	Dec. 31, 2012 Cloverleaf Communications, Inc. [Member]	Jan. 26, 2010 Cloverleaf Communications, Inc. [Member]	Dec. 31, 2011 Cloverleaf Communications, Inc. [Member] Nonrecurring [Member]	Dec. 31, 2012 Property and Equipment [Member]	Jun. 30, 2012 Property and Equipment [Member]	Dec. 31, 2011 Property and Equipment [Member] Nonrecurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Property and equipment, net	$ 7,147,000	$ 4,972,000												$ 700,000
Impairment of property and equipment	1,647,000	2,928,000	0										200,000
Property and equipment, net	0														1,150,000
Acquired software at carrying value	4,900,000
Fair value of acquired software					0	2,050,000	0	0
Impairment of software		2,800,000			1,647,000	2,807,000		121,000
Acquired trade name at carrying value	100,000
Goodwill	0	0								4,100,000	4,140,000
Goodwill at fair value				0					0
Impairment losses	$ 0	$ 4,140,000	$ 0						$ 4,100,000			$ 4,140,000
Royalty payments to Ciprico based on estimated future sales	6.67%