Debt and Line of Credit (Details) (USD $)	12 Months Ended		12 Months Ended					12 Months Ended						0 Months Ended				12 Months Ended
	Dec. 31, 2012 satellite_hub	Dec. 31, 2013	Dec. 31, 2013 Revolving loan agreement	Dec. 31, 2012 Revolving loan agreement	Dec. 31, 2011 Revolving loan agreement	May 11, 2013 Revolving loan agreement	May 09, 2013 Revolving loan agreement	Dec. 31, 2013 Mortgages financial_covenants	Apr. 06, 2009 Mortgages	Dec. 31, 2013 Mortgages Land, buildings and improvements	Dec. 31, 2013 Mortgages Minimum	Jun. 09, 2011 Mortgages BBA LIBOR Maximum	Dec. 31, 2013 Mortgages BBA LIBOR Minimum	Dec. 30, 2013 Notes Payable to Bank	Jan. 30, 2013 Notes Payable to Bank satellite_hub	Dec. 31, 2013 Line of credit Revolving loan agreement	Dec. 31, 2013 Line of credit BBA LIBOR daily floating rate Revolving loan agreement	Dec. 31, 2013 Term loan BBA LIBOR daily floating rate
Debt Instrument [Line Items]
Debt instrument, face amount									$ 4,000,000					$ 1,200,000	$ 4,700,000
Debt instrument, maturity term								10 years						5 years	5 years
Debt instrument, principal amortization term								20 years
Debt instrument, basis spread on variable rate												2.25%	2.00%				1.25%
Debt instrument, collateral amount										5,000,000
Monthly repayments of long-term debt, principal and interest								0
Annual increase in repayments of long-term debt, principal and interest								0
Thereafter								2,551,000
Number of financial covenants								1
Debt instrument, restrictive covenant, fixed charge coverage ratio, amount											25,000,000
Number of satellite hubs pledged as collateral															6
Number of satellite hubs purchased in period	3
Debt instrument, fixed interest rate														3.08%	2.76%
Monthly debt payment														21,000	0
Long-term Debt, Fiscal Year Maturity [Abstract]
2014								1,272,000
2015								1,313,000
2016								1,355,000
2017								1,398,000
2018								431,000
Thereafter								2,597,000
Total outstanding at December 31, 2013								8,366,000
Line of credit facility, current borrowing capacity				15,000,000			30,000,000
Debt instrument, restrictive covenant, unencombered liquid assets, amount																20,000,000
Debt instrument, termination notice period																		30 days
Line of credit	7,000,000	30,000,000				23,000,000
Line of credit facility, amount outstanding			0
Monthly interest payments			36,000
Line of credit facility, commitment fee amount			$ 35,000	$ 27,000	$ 49,000