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Consolidated Statements of Stockholders' Equity - USD ($)
shares in Thousands, $ in Thousands
Total
Common Stock
Treasury Stock
Additional Paid-in Capital
Retained Earnings
Accumulated Other Comprehensive Loss
Beginning balance at Sep. 30, 2013 $ 274,243 $ 303 $ (38,517) $ 211,982 $ 116,065 $ (15,590)
Beginning balance (in shares) at Sep. 30, 2013   30,264 4,709      
Increase (Decrease) in Stockholders' Equity [Roll Forward]            
Net income 1,751       1,751  
Other comprehensive loss (2,687)         (2,687)
Employee stock purchase issuances (in shares)     (129)      
Employee stock purchase issuances 1,009   $ 1,082 (73)    
Repurchase of common stock (in shares)     1,734      
Repurchase of common stock (15,802)   $ (15,802)      
Issuance of stock upon exercise of stock options (in shares)   440        
Issuance of stock upon exercise of stock options 3,689 $ 4   3,685    
Tax impact from equity awards (1,235)     (1,235)    
Stock-based compensation expense 4,330     4,330    
Ending balance (in shares) at Sep. 30, 2014   30,704 6,314      
Ending balance at Sep. 30, 2014 265,298 $ 307 $ (53,237) 218,689 117,816 (18,277)
Increase (Decrease) in Stockholders' Equity [Roll Forward]            
Net income 6,588       6,588  
Other comprehensive loss (4,336)         (4,336)
Employee stock purchase issuances (in shares)     (124)      
Employee stock purchase issuances 925   $ 1,041 (116)    
Repurchase of common stock (in shares)     297      
Repurchase of common stock (2,339)   $ (2,339)      
Issuance of stock under stock award plans (in shares)   830        
Issuance of stock under stock award plans 6,559 $ 8   6,551    
Tax impact from equity awards (2,058)     (2,058)    
Stock-based compensation expense 4,301     4,301    
Ending balance (in shares) at Sep. 30, 2015   31,534 6,487      
Ending balance at Sep. 30, 2015 274,938 $ 315 $ (54,535) 227,367 124,404 (22,613)
Increase (Decrease) in Stockholders' Equity [Roll Forward]            
Net income 16,708       16,708  
Other comprehensive loss (2,078)         (2,078)
Employee stock purchase issuances (in shares)     (104)      
Employee stock purchase issuances 896   $ 876 20    
Repurchase of common stock (in shares)     48      
Repurchase of common stock (550)   $ (550)      
Issuance of stock under stock award plans (in shares)   937        
Issuance of stock under stock award plans 7,191 $ 10   7,181    
Tax impact from equity awards (914)     (914)    
Accelerated vesting of Etherios stock award plans 184     184    
Stock-based compensation expense 3,654     3,654    
Ending balance (in shares) at Sep. 30, 2016   32,471 6,431      
Ending balance at Sep. 30, 2016 300,029 $ 325 $ (54,209) 237,492 141,112 (24,691)
Beginning balance at Jun. 30, 2016 294,900          
Increase (Decrease) in Stockholders' Equity [Roll Forward]            
Net income [1],[2] 3,844          
Ending balance (in shares) at Sep. 30, 2016   32,471 6,431      
Ending balance at Sep. 30, 2016 $ 300,029 $ 325 $ (54,209) $ 237,492 $ 141,112 $ (24,691)
[1] During fiscal 2016 and 2015, we recorded net tax benefits of $1.5 million and $0.8 million, respectively. We recorded a benefit of $0.7 million in the first quarter of fiscal 2016 resulting from the reinstatement of the research and development tax credit for calendar year 2015, reversal of income tax reserves due to the expiration of the statute of limitations from various U.S. and foreign tax jurisdictions and reversal of tax reserves due to the resolution of tax audits. In the third quarter of fiscal 2016, we recorded a tax benefit of $0.5 million primarily due to the filing of an amended income tax return resulting in a domestic refund related to qualified manufacturing activities. In the fourth quarter of fiscal 2016, we recorded a net tax benefit of $0.2 million, primarily due to the filing of an additional amended income tax return resulting in an additional domestic refund related to qualified manufacturing activities, partially offset by an adjustment of the state rate on net deferred tax assets. We recorded net tax benefits of $0.5 million in the first quarter of fiscal 2015 resulting from the reinstatement of the research and development tax credit for calendar year 2014, reversal of income tax reserves due to the expiration of the statute of limitations from various U.S. and foreign tax jurisdictions and reversal of tax reserves due to the resolution of tax audits. In the third quarter of fiscal 2015, we recorded a tax benefit of $0.4 million primarily due to the reversal of reserves for state research and development tax credits and transfer pricing, partially offset by an adjustment of the state rate on net deferred tax assets.
[2] For continuing operations, we recorded business restructuring charges of $0.7 million ($0.4 million after tax) in the first quarter of fiscal 2016, $0.1 million ($0.1 million after tax) in the second quarter of fiscal 2016 and $0.4 million ($0.3 million after tax) in the second quarter of fiscal 2015.