Product Revenue Reserves and Allowances (Tables)

12 Months Ended

Dec. 31, 2021

Revenue From Contract With Customer [Abstract]

Net product revenues by product for the years ended December 31, 2021 and 2020 were as follows (in thousands):

	Year Ended December 31,
	2021		2020
YUTIQ (A)	$	16,959	$	13,878
DEXYCU (B)		18,353		6,953
Total product sales, net	$	35,312	$	20,831

(A)

Included approximately $25 and $205 of revenue recognized from YUTIQ product sales to Ocumension under a supply agreement for the years ended December 31, 2021 and 2020, respectively.

(B)

Included approximately $283 and $8 of revenue recognized from DEXYCU product sales to Ocumension under a supply agreement for the years ended December 31, 2021 and 2020, respectively.

Product Revenue Allowance and Reserves

The following table summarizes activity in each of the product revenue allowance and reserve categories for the years ended December 31, 2021 and 2020 (in thousands):

	Chargebacks, Discounts and Fees			Government and Other Rebates			Returns			Total
Beginning balance at January 1, 2021	$	574		$	535		$	603		$	1,712
Provision related to sales in the current year		7,274			5,337			785			13,396
Adjustments related to prior period sales		(50	)		(22	)		(200	)		(272	)
Deductions applied and payments made		(6,645	)		(4,029	)		(809	)		(11,483	)
Ending balance at December 31, 2021	$	1,153		$	1,821		$	379		$	3,353

	Chargebacks, Discounts and Fees			Government and Other Rebates			Returns			Total
Beginning balance at January 1, 2020	$	1,618		$	271		$	352		$	2,241
Provision related to sales in the current year		2,141			1,056			978			4,175
Adjustments related to prior period sales		(387	)		—			50			(337	)
Deductions applied and payments made		(2,798	)		(792	)		(777	)		(4,367	)
Ending balance at December 31, 2020	$	574		$	535		$	603		$	1,712