Quarterly report pursuant to Section 13 or 15(d)

Stock-Based Compensation - 2000 Equity Incentive Plan and 2017 Equity Incentive Plan (Details)

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Stock-Based Compensation - 2000 Equity Incentive Plan and 2017 Equity Incentive Plan (Details) - shares
3 Months Ended
Jun. 05, 2018
Jun. 30, 2018
2000 Equity Incentive Plan and 2017 Equity Incentive Plan | Stock options    
Stockholders' equity    
Vesting period   4 years
Expiration Term   10 years
Portion vesting one year after the issuance date (as a percent)   25.00%
Vesting period after one year of grant   1 year
Portion vesting on first day of each month after one year from the issuance date (as a percent)   2.083%
Vesting period of awards after issuance date   48 months
2000 Plan    
Stockholders' equity    
Number of shares of common stock reserved for issuance   1,849,000
2017 Plan    
Stockholders' equity    
Number of shares of common stock reserved for issuance   3,000,000
Number of shares of common stock increased under amended and restated plan 3,000,000