The Company and Summary of Significant Accounting Policies (Tables)
|12 Months Ended|
Dec. 31, 2017
|The Company and Summary of Significant Accounting Policies [Abstract]|
|Dilutive common stock equivalents||
Tabular disclosure of securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) in the future that were not included in the computation of diluted EPS because to do so would increase EPS amounts or decrease loss per share amounts for the period presented, by antidilutive securities.
Reference 1: http://www.xbrl.org/2003/role/presentationRef