Amount of cost not yet recognized for nonvested award under share-based payment arrangement.

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Period from grant date that an equity-based award expires, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Weighted average remaining contractual term for vested portions of options outstanding and currently exercisable or convertible, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Weighted average remaining contractual term for option awards outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Stock-Based Compensation (Details Narrative) - USD ($) $ in Thousands		2 Months Ended	3 Months Ended		12 Months Ended
	Oct. 05, 2018	Dec. 31, 2018	Mar. 31, 2019	Mar. 31, 2018	Oct. 31, 2017	Oct. 31, 2015
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Fair value of stock options shares granted			$ 10,327	$ 7,445
Share-based compensation arrangement by share-based payment award, options, outstanding, intrinsic value			18,500
Intrinsic value of options exercised			$ 1,900
Weighted average remaining contractual term, outstanding			8 years 7 months 6 days
Weighted average remaining contractual term, exercisable options			8 years 1 month 6 days
Unrecognized compensation cost			$ 17,000
Unrecognized compensation cost, period for recognition			8 months 12 days
Employee Stock Option [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Fair value of stock options shares granted			$ 6,600
Restricted Stock and Restricted Stock Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized compensation cost			$ 6,600
Unrecognized compensation cost, period for recognition			1 year
Fair value of restricted stock vested			$ 2,700
Maximum [Member] \| Restricted Stock and Restricted Stock Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock options vesting term			3 years
Maximum [Member] \| Stock Option [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock options vesting term			3 years
Stock options expire term			10 years
Minimum [Member] \| Restricted Stock and Restricted Stock Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock options vesting term			6 months
Minimum [Member] \| Stock Option [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock options vesting term			1 year
Stock options expire term			5 years
2019 Equity Incentive Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock based compensation terminate date	Oct. 05, 2028
Number of share available for future issuance			2,032,001
2019 Equity Incentive Plan [Member] \| Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of common stock shares issued	3,000,000
2017 Equity Incentive Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of common stock shares issued					3,450,000
Stock based compensation terminate date			Dec. 01, 2026
Number of share available for future issuance			171,767
2017 Equity Incentive Plan [Member] \| Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of common stock shares issued		7,300,000
2014 Equity Incentive Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of share available for future issuance			1,927,453
2014 Equity Incentive Plan [Member] \| Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of common stock shares issued						2,250,000