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Description of Business (Details) (USD $) | 12 Months Ended |  |  |  |  |
--- | --- | --- | --- | --- | --- | ---
Dec. 31, 2012 | Dec. 31, 2011 | Dec. 31, 2010 | Dec. 31, 2012 Current Line of Credit | Jun. 25, 2012 Current Line of Credit | Dec. 31, 2012 Promissory note G. Ward Paxton, chief executive officer | Feb. 09, 2012 Promissory note G. Ward Paxton, chief executive officer
Description of Business |  |  |  |  |  |  |
Minimum number of years for which local area networking equipment was provided | 15 years |  |  |  |  |  |
Cash and cash equivalents | $ 52,000 | $ 308,000 | $ 540,000 |  |  |  |
Net loss | (246,000) | (933,000) |  |  |  |  |
Period during which the entity expects to have sufficient cash resources to finance its operations and capital expenditures | 12 months |  |  |  |  |  |
Description of Business |  |  |  |  |  |  |
Funding available |  |  |  | 456,000 |  | 670,000 |
Maximum borrowing capacity |  |  |  | $ 625,000 | $ 625,000 | $ 2,200,000 | $ 2,200,000

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