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Income Taxes (Narrative) (Details) (USD $) | 12 Months Ended |
--- | --- | ---
Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2011 | Dec. 31, 2005
Income Taxes [Line Items] |  |  |  |
Net operating loss carryforwards | $ 75,000 |  |  |
Dividend payable | 1,436,318 |  | 1,270,016 |
Net operating loss carryforwards acquired in acquisition | 3,790,000 |  |  |
Net operating loss carryforwards, limitations on use | 228,000 |  |  |
Uncertain tax benefit positions that would reduce the effective income tax rate if recognized | 323,000 |  |  |
Expiration of statute of limitations | 66,000 | 81,000 | 43,000 |
Accrual for interest and penalties | 161,000 |  |  |
Net increase (decrease) in accrued interest and penalties | (7,000) |  |  |
Effective income tax rate | 186.80% | 34.10% | 44.40% |
Federal tax rate | 35.00% | 35.00% | 35.00% |
Decrease in income tax rate due to the effect of foreign operations | (3.30%) | 0.20% | (4.70%) |
Scenario, Forecast [Member] |  |  |  |
Income Taxes [Line Items] |  |  |  |
Expiration of statute of limitations | 7,000 |  |  |
Austin Taylor Communications, Ltd. [Member] |  |  |  |
Income Taxes [Line Items] |  |  |  |
Pretax income (losses) | 428,000 | 419,000 | 1,474,000 |
Net operating loss carryforwards | 6,568,000 |  |  |
Patapsco [Member] | Foreign Tax Authority [Member] |  |  |  |
Income Taxes [Line Items] |  |  |  |
Pretax income (losses) | (2,754,000) | 316,000 | 55,000 |
Net operating loss carryforwards | 90,000 |  |  |
Transition Networks China [Member] |  |  |  |
Income Taxes [Line Items] |  |  |  |
Pretax income (losses) | 341,000 | 36,000 | 24,000 |
Net operating loss carryforwards | 306,000 |  |  |
Suttle Costa Rica, S.A. [Member] |  |  |  |
Income Taxes [Line Items] |  |  |  |
Pretax income (losses) | 152,000 | 168,000 | 155,000 |
Net operating loss carryforwards | 0 |  |  |
Dividend payable |  |  |  | $ 3,500,000

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- Definition Carrying value as of the balance sheet date of dividends declared but unpaid on equity securities issued by the entity and outstanding. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.15(5)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 15 -Subparagraph a -Article 7 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 15 -Subparagraph 5 -Article 9 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.15(5)) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 + Details
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