Annual report pursuant to Section 13 and 15(d)

Income Taxes (Narrative) (Details)

v2.4.0.6
Income Taxes (Narrative) (Details) (USD $)
 12 Months Ended 12 Months Ended
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2010
Dec. 31, 2013
Scenario, Forecast [Member]
Dec. 31, 2012
Austin Taylor Communications, Ltd. [Member]
Dec. 31, 2011
Austin Taylor Communications, Ltd. [Member]
Dec. 31, 2010
Austin Taylor Communications, Ltd. [Member]
Dec. 31, 2012
Patapsco [Member]
Dec. 31, 2012
Transition Networks China [Member]
Dec. 31, 2011
Transition Networks China [Member]
Dec. 31, 2010
Transition Networks China [Member]
Dec. 31, 2012
Suttle Costa Rica, S.A. [Member]
Dec. 31, 2011
Suttle Costa Rica, S.A. [Member]
Dec. 31, 2010
Suttle Costa Rica, S.A. [Member]
Dec. 31, 2005
Suttle Costa Rica, S.A. [Member]
Income Taxes [Line Items]                              
Pretax income (losses)         $ 419,000 $ 1,474,000 $ 1,119,000   $ 36,000 $ 24,000 $ (115,000) $ 168,000 $ 155,000 $ 80,000  
Net operating loss carryforwards 303,000       6,140,000     419,000 1,558,000     0      
Dividend payable   1,270,016 1,263,434                       3,500,000
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 251,000                            
Expiration of statute of limitations 81,000 43,000 86,000 66,000                      
Accrual for interest and penalties 168,000                            
Net increase (decrease) in accrued interest and penalties $ (4,000)