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Commitments and Contingencies - Litigation (Details) - 2007 Plan - Proxy Statements - Pending Litigation - shares
1 Months Ended
Nov. 08, 2016
Sep. 30, 2015
Sep. 15, 2016
Loss Contingencies [Line Items]      
Stock options authorized under the plan (in shares)     500,000
Mr. Bergera      
Loss Contingencies [Line Items]      
Excess options granted (in shares) 850,000    
Mr. Bergera | Maximum      
Loss Contingencies [Line Items]      
Options granted (in shares)   1,350,000