Shareholders' Equity and Share-based Compensation (Tables)

3 Months Ended

Sep. 30, 2020

Share-based Payment Arrangement, Noncash Expense [Abstract]

Restricted Stock Units Activity

The following table summarizes the Company's PRSUs activities for the three months ended September 30, 2020:

	Number of Performance-based Restricted Stock Units		Weighted Average Grant Date Fair Value Per Share		Weighted Average Remaining Contractual Term (Years)	Aggregate Intrinsic Value
Nonvested at June 30, 2020	342,775		$	12.38	1.60	$	3,729,392
Forfeited	(1,500	)	$	16.67
Nonvested at September 30, 2020	341,275		$	12.36	1.34	$	4,375,146

Time-based Restricted Stock Units ("TRSU")

The following table summarizes the Company's TRSU activities for the three months ended September 30, 2020:

	Number of Restricted Stock Units		Weighted Average Grant Date Fair Value Per Share		Weighted Average Remaining Contractual Term (Years)	Aggregate Intrinsic Value
Nonvested at June 30, 2020	932,138		$	11.36	1.66	$	10,141,661
Granted	109,425		$	12.91
Vested	(110,495	)	$	13.51
Forfeited	(4,625	)	$	10.86
Nonvested at September 30, 2020	926,443		$	11.29	1.49	$	11,876,999

Summary of Stock Option Activities

The following table summarizes the Company's stock option activities for the three months ended September 30, 2020:

				Weighted
		Weighted		Average
		Average		Remaining
	Number of	Exercise Price		Contractual	Aggregate
	Shares	Per Share		Term (in years)	Intrinsic Value
Outstanding at June 30, 2020	643,978	$	8.79	2.89	$	1,544,664
Outstanding at September 30, 2020	643,978	$	8.79	2.64	$	2,593,702
Options vested and expected to vest	643,978	$	8.79	2.64	$	2,593,702
Exercisable at September 30, 2020	643,978	$	8.79	2.64	$	2,593,702

Schedule of Share-based Payment Award, Employee Stock Purchase Plan, Valuation Assumptions [Table Text Block]

The assumptions used to estimate the fair values of common shares issued under the ESPP were as follows:

	Three Months Ended September 30,
	2020
Volatility rate	58.3%
Risk-free interest rate	0.2%
Expected term	1.3 years
Dividend yield	0%

Share-based Compensation, Allocation of Recognized Period Costs

Share-based Compensation Expense

The total share-based compensation expense recognized in the condensed consolidated statements of operations for the periods presented was as follows:

	Three Months Ended September 30,
	2020		2019
	(in thousands)
Cost of goods sold	$	385	$	436
Research and development	1,080		524
Selling, general and administrative	1,411		1,409
	$	2,876	$	2,369