Annual report pursuant to Section 13 and 15(d)

Stock Option Plans (Summary Of Stock Option Plans) (Detail)

v3.3.1.900
Stock Option Plans (Summary Of Stock Option Plans) (Detail) - shares
Dec. 31, 2015
Dec. 31, 2014
Stock Option Plan [Line Items]    
Outstanding as of December 31, 2015 1,022,789  
Available for future issuance under plan 744,295  
Totals authorized by plan 1,767,084  
2007 Plan    
Stock Option Plan [Line Items]    
Outstanding as of December 31, 2015 37,447  
Available for future issuance under plan 0  
Totals authorized by plan 37,447  
2009 Plan    
Stock Option Plan [Line Items]    
Outstanding as of December 31, 2015 120,842  
Available for future issuance under plan 0  
Totals authorized by plan 120,842  
2014 Plan    
Stock Option Plan [Line Items]    
Outstanding as of December 31, 2015 864,500  
Available for future issuance under plan 744,295  
Totals authorized by plan 1,608,795 1,000,000