Description of Business (Details) (USD $)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Jun. 24, 2014	Feb. 06, 2014
Description of Business
Minimum number of years for which local area networking equipment was provided	15 years
Cash and cash equivalents	$ 1,006,000	$ 1,139,000	$ 52,000
Net income (loss)	(274,000)	623,000
Period during which the entity expects to have sufficient cash resources to finance its operations and capital expenditures	12 months
Current Line of Credit
Description of Business
Funding available	475,000
Maximum borrowing capacity	625,000			625,000
Promissory note | G. Ward Paxton, chief executive officer
Description of Business
Funding available	670,000
Maximum borrowing capacity	$ 2,200,000				$ 2,200,000