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Debt (Details 2)
$ / shares in Units, $ in Millions
3 Months Ended
Dec. 27, 2015
USD ($)
Apr. 08, 2015
USD ($)
$ / shares
shares
Dec. 31, 2014
Dec. 27, 2015
USD ($)
Common Stock        
Debt        
Number of shares sold | shares   3,450,000    
Price of shares sold (in dollars per share) | $ / shares   $ 5.00    
Net proceeds | $   $ 15.5    
Option granted to underwriters | Common Stock        
Debt        
Number of shares sold | shares   450,000    
Amended & Restated Credit Agreement        
Debt        
Maximum borrowing capacity | $ $ 90.0     $ 90.0
Threshold senior leverage ratio for no mandatory prepayments 2.25      
Period for equity proceeds utilization without mandatory loan prepayments 90 days      
Percentage of equity proceeds required to reduce senior leverage ratio to first target level, if above threshold 100.00%      
Target pro forma senior leverage ratio for first tier percentage of equity proceeds 2.75      
Percentage of equity proceeds required to reduce senior leverage ratio to second target level, if above threshold 75.00%      
Target pro forma senior leverage ratio for second tier percentage of equity proceeds 2.25      
Percentage of remaining equity proceeds required to reduce senior leverage ratio to threshold level 50.00%      
Percentage of equity proceeds to prepay debt if applied as cure amounts 100.00%      
Interest rate on borrowings (as a percent) 4.20%     4.20%
Amended & Restated Credit Agreement | Senior secured revolving commitment | Minimum        
Debt        
Commitment fees (as a percent) 0.25%      
Amended & Restated Credit Agreement | Senior secured revolving commitment | Maximum        
Debt        
Commitment fees (as a percent) 0.45%      
Amended & Restated Credit Agreement | Senior secured term loan        
Debt        
Commitment fees (as a percent) 0.50%      
Amended & Restated Credit Agreement | Base Rate Loans | Base Rate        
Debt        
Spread on variable rate basis (as a percent)     3.00%  
Amended & Restated Credit Agreement | Base Rate Loans | Base Rate | Minimum        
Debt        
Spread on variable rate basis (as a percent) 1.50%      
Amended & Restated Credit Agreement | Base Rate Loans | Base Rate | Maximum        
Debt        
Spread on variable rate basis (as a percent) 3.00%      
Amended & Restated Credit Agreement | Base Rate Loans | Federal Funds Rate        
Debt        
Spread on variable rate basis (as a percent) 0.50%      
Amended & Restated Credit Agreement | Base Rate Loans | Adjusted Eurodollar rate        
Debt        
Spread on variable rate basis (as a percent)       1.00%
Amended & Restated Credit Agreement | Eurocurrency Rate Loans | ICE Benchmark Administration LIBOR Rate        
Debt        
Spread on variable rate basis (as a percent)     4.00%  
Amended & Restated Credit Agreement | Eurocurrency Rate Loans | ICE Benchmark Administration LIBOR Rate | Minimum        
Debt        
Spread on variable rate basis (as a percent) 2.50%      
Amended & Restated Credit Agreement | Eurocurrency Rate Loans | ICE Benchmark Administration LIBOR Rate | Maximum        
Debt        
Spread on variable rate basis (as a percent) 4.00%