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Share-Based Compensation (Tables)

9 Months Ended

Sep. 30, 2020

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

Summary of Share-Based Compensation Expenses Related to Restricted Shares

The allocation of share-based compensation expense was as follows:

		Year Ended December 31,				Nine Months Ended September 30,
		2019				2019				2020
		RMB				RMB				RMB				US$ (Note 2.5)
Research and development expenses			470				467				224,619				33,083
Administrative expenses			514,733				514,726				167,957				24,737
			515,203				515,193				392,576				57,820

Summary of Stock Options Activities

The following table sets forth the stock options activities of 2017 Plan for the nine months ended September 30, 2020 is presented below:

		Number of shares				Weighted average exercise price US$				Weighted average remaining contractual term				Aggregate intrinsic value US$
Outstanding as of December 31, 2019			9,812,881				0.93				7.76				47,671
Exercised			(115,888	)			1.00				—				—
Forfeited			(336,377	)			1.00				—				—
Surrendered (Note 15 (h))			(332,566	)			1.00				—				—
Outstanding as of September 30, 2020			9,028,050				0.93				7.01				175,576
Exercisable as of September 30, 2020			8,047,548				0.92				6.91				156,567

Summary of Valuation Assumptions Used

The Group determined the fair value of the put right with the assistance of an independent third-party valuation firm. The Group used the option pricing model (finnerty model) to estimate the fair value of the put right using the following assumptions:

		As of September 15, and September 30,
		2020
Expected terms (Year)			4
Estimated volatility			55.2	%
Spot price		US$	143,401
Probability of triggering event for redemption option			65	%

2017 Plan [Member]

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

Schedule of Nonvested Share Activity [Table Text Block]

A summary of non-vested stock option activities for the nine months ended September 30, 2020 is presented below:

		Number of shares				Weighted average Grant date fair value US$
Non-vested at December 31, 2019			9,812,881				2.10
Vested			(8,047,548	)			1.74
Exercised			(115,888	)			2.14
Forfeited			(336,377	)			2.26
Surrendered			(332,566	)			1.47
Non-vested at September 30, 2020			980,502				5.02

2018 Plan [Member]

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

Summary of Stock Options Activities

The following table sets forth the stock options activities of 2018 Plan for the nine months ended September 30, 2020 is presented below:

		Number of shares				Weighted average exercise price US$				Weighted average remaining contractual term				Aggregate intrinsic value US$
Outstanding as of December 31, 2019			13,536,588				1.00				9.15				64,840
Surrendered (Note 15 (h))			(2,544,917	)			1.00				—				—
Outstanding as of September 30, 2020			10,991,671				1.00				8.40				213.764
Exercisable as of September 30, 2020			10,166,671				1.00				8.40				197,720

Schedule of Nonvested Share Activity [Table Text Block]

A summary of non-vested stock option activities for the nine months ended September 30, 2020 is presented below:

		Number of shares				Weighted average grant-date fair value US$
Non-vested at December 31, 2019			3,098,500				5.57
Vested			(2,273,500	)			5.57
Non-vested at September 30, 2020			825,000				5.57

2019 Plan [Member]

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

Summary of Stock Options Activities

The following table sets forth the stock options activities of 2019 Plan for the nine months ended September 30, 2020 presented:

		Number of shares				Weighted average exercise price US$				Weighted average remaining contractual term				Aggregate intrinsic value US$
Outstanding as of December 31, 2019			—				—				—				—
Granted			72,000				6.09				—				—
Outstanding as of September 30, 2020			72,000				6.09				9.59				1,034
Exercisable as of September 30, 2020			—				—				—				—

Summary of Valuation Assumptions Used

Stock options granted to the 3 independent directors were measured at fair value on the dates of grant using the Binomial Option Pricing Model with the following assumptions:

		Nine Months Ended September 30,
		2020
Expected volatility			54.88	%
Risk-free interest rate (per annum)			0.79	%
Exercise multiple			2.80
Expected dividend yield			—
Contractual term (in years)			10

Schedule of Nonvested Share Activity [Table Text Block]

A summary of non-vested stock options activity for the nine months ended September 30, 2020 is presented below:

		Number of shares				Weighted average grant-date fair value US$
Non-vested at December 31, 2019			—				—
Granted			72,000				6.09
Non-vested at September 30, 2020			72,000				6.09

2020 Plan [Member]

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

Summary of Stock Options Activities

The following table sets forth the stock options activities of 2020 Plan for the nine months ended September 30, 2020:

Summary of Valuation Assumptions Used

Stock options granted to the employees were measured at fair value on the dates of grant using the Binomial Option Pricing Model with the following assumptions:

		Nine Months Ended September 30,
		2020
Expected volatility			56.51	%
Risk-free interest rate (per annum)			0.86	%
Exercise multiple			2.20-2.80
Expected dividend yield			—
Contractual term (in years)			10

Schedule of Nonvested Share Activity [Table Text Block]

A summary of non-vested stock option activities for the nine months ended September 30, 2020 is presented below:

		Number of shares				Weighted average grant-date fair value US$
Non-vested at December 31, 2019			—				—
Granted			1,068,733				8.65
Forfeited			(18,693	)			8.65
Non-vested at September 30, 2020			1,050,040				8.65

Restricted Shares [Member]

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

Summary of Share-Based Compensation Expenses Related to Restricted Shares

Share-based compensation expenses related to restricted shares are included in:

		Year Ended December 31,				Nine Months Ended September 30,
		2019				2019				2020
		RMB				RMB				RMB				US$ (Note 2.5)
Research and development expenses			470				467				—				—
Administrative expenses			1,096				1,089				—				—
			1,566				1,556				—				—

Restricted Shares [Member] | 2018 Plan [Member]

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

Summary of Stock Options Activities

The following table sets forth the restricted share units subject to terms and conditions under 2018 Plan for the nine months ended September 30, 2020:

Schedule of Nonvested Restricted Stock Units Activity

A summary of non-vested restricted share units activities for the nine months ended September 30, 2020 is presented below:

		Number of restricted share units				Weighted average grant-date fair value US$
Non-vested at December 31, 2019			—				—
Granted			1,328,120				13.34
Vested			(558,200	)			13.98
Non-vested at September 30, 2020			769,920				12.88

Restricted Shares [Member] | 2020 Plan [Member]

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

Summary of Stock Options Activities

The following table sets forth the restricted share units of 2020 Plan for the nine months ended September 30, 2020:

		Number of restricted share units				Weighted average exercise price US$				Weighted average remaining contractual term				Aggregate intrinsic value US$
Outstanding as of December 31, 2019			—				—				—				—
Granted			3,564,798				—				—				—
Forfeited			(13,461	)			—				—				—
Outstanding as of September 30, 2020			3,551,337				—				9.91				72,617

Schedule of Nonvested Restricted Stock Units Activity

A summary of non-vested restricted share units activities for the nine months ended September 30, 2020 is presented below:

		Number of restricted share units				Weighted average grant-date fair value US$
Non-vested at December 31, 2019			—				—
Granted			3,564,798				13.63
Forfeited			(13,461	)			11.75
Non-vested at September 30, 2020			3,551,337				13.68

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