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Stockholders' Equity - Stock Option Plans and Restricted Stock Units Plans (Details) (USD $)
In Millions, except Share data in Thousands, unless otherwise specified
 12 Months Ended 0 Months Ended 12 Months Ended 0 Months Ended 0 Months Ended
Dec. 29, 2013
Dec. 29, 2013
Minimum
Dec. 29, 2013
Maximum
Dec. 29, 2013
Stock Options and Restricted Stock Units [Member]
Maximum
Dec. 29, 2013
Stock options
Dec. 29, 2013
Stock options
Maximum
Dec. 24, 2008
DFI non-qualified out-of-plan stock options
Dec. 29, 2013
Restricted Stock Units (RSUs)
Dec. 30, 2012
Restricted Stock Units (RSUs)
Dec. 25, 2011
Restricted Stock Units (RSUs)
Dec. 29, 2013
Restricted Stock Units (RSUs)
Minimum
Dec. 30, 2012
Restricted Stock Units (RSUs)
Minimum
Dec. 25, 2011
Restricted Stock Units (RSUs)
Minimum
Dec. 29, 2013
Restricted Stock Units (RSUs)
Maximum
Dec. 30, 2012
Restricted Stock Units (RSUs)
Maximum
Dec. 25, 2011
Restricted Stock Units (RSUs)
Maximum
Dec. 29, 2013
2005 Plan
Dec. 29, 2013
2011 Plan
Dec. 29, 2013
Integral's 2008 Plan
Dec. 29, 2013
Herley's 2010 Plan
Dec. 15, 2010
Henry Bros. Electronics Stock Option Plans
Stock options
Dec. 15, 2010
Henry Bros. Electronics Stock Option Plans
Stock options
Minimum
Dec. 15, 2010
Henry Bros. Electronics Stock Option Plans
Stock options
Maximum
Dec. 24, 2008
Digital Fusion, Inc. Stock Incentive Plans
Stock options
Dec. 24, 2008
Digital Fusion, Inc. Stock Incentive Plans
Non-statutory stock options
Dec. 24, 2008
Digital Fusion, Inc. Stock Incentive Plans
Incentive stock options
Dec. 24, 2008
Digital Fusion, Inc. Stock Incentive Plans
Incentive stock options
Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                                                      
Number of shares available for grant                                 362 1,000 1,300 365              
Share-based incentive award vesting period   5 years 10 years 10 years   6 years                               3 years 5 years     3 years  
Award term or expiration period           10 years 10 years                           10 years     10 years   10 years  
Share-based Compensation Arrangement by Share-based Payment Award, Period after Which Awards Become Exercisable                                         1 year           1 year
Percentage of vested awards                                                 100.00%    
Purchase price of common stock as a percent of fair market value                                                   100.00%  
Award expiration extension period                                                   2 years  
Vesting period of awards granted in period                     1 year 1 year 2 years 10 years 10 years 10 years                      
Total unrecognized stock-based compensation expense related to nonvested options $ 2.1                                                    
Unrecognized stock-based compensation expense, period for recognition         4 years 2 months 12 days     3 years 2 months 12 days                                      
Total unrecognized stock-based compensation expense related to nonvested restricted stock units               15.8                                      
Fair value of vested awards               $ 1.7 $ 1.9 $ 0.8