Revenue (Tables)

6 Months Ended

Jun. 30, 2022

Revenue from Contract with Customer [Abstract]

Net product revenues by product for the three and six months ended June 30, 2022 and 2021 were as follows (in thousands):


	Three Months Ended June 30,				Six Months Ended June 30,
	2022		2021		2022		2021

YUTIQ (A)	$	7,421	$	4,166	$	12,032	$	7,196
DEXYCU (B)		3,897		4,572		8,296		8,344
Total product sales, net	$	11,318	$	8,738	$	20,328	$	15,540

(a)

Included approximately $11 and $67 of revenue from YUTIQ product sales to Ocumension under a supply agreement for the three and six months ended June 30, 2022, respectively, and approximately $14 and $19 of revenue from YUTIQ product sales to Ocumension under a supply agreement for the three and six months ended June 30, 2021, respectively.

(b)

No revenue was recognized from DEXYCU product sales to Ocumension under a supply agreement for the three and six months ended June 30, 2022, and no revenue was recognized from DEXYCU product sales to Ocumension for the three and six months ended June 30, 2021.

Product Revenue Allowances and Reserves

The following table summarizes activity in each of the product revenue allowance and reserve categories for the six months ended June 30, 2022 and 2021 (in thousands):


	Chargebacks, Discounts			Government and Other
	and Fees			Rebates			Returns			Total
Beginning balance at January 1, 2022	$	1,153		$	1,821		$	379		$	3,353
Provision related to sales in the current year		6,580			3,554			329			10,463
Adjustments related to prior period sales											—
Deductions applied and payments made		(5,698	)		(3,490	)		(198	)		(9,386	)
Ending balance at June 30, 2022	$	2,035		$	1,885		$	510		$	4,430

	Chargebacks, Discounts			Government and Other
	and Fees			Rebates			Returns			Total
Beginning balance at January 1, 2021	$	574		$	535		$	603		$	1,712
Provision related to sales in the current year		2,932			1,965			497			5,394
Adjustments related to prior period sales		(50	)		(22	)		(100	)		(172	)
Deductions applied and payments made		(2,229	)		(1,121	)		(581	)		(3,931	)
Ending balance at June 30, 2021	$	1,227		$	1,357		$	419		$	3,003