Revenue Recognition (Tables)

6 Months Ended

Jun. 30, 2017

Revenue Recognition [Abstract]

Summary of activity in each of the product revenue allowance and reserve categories

	Chargebacks, discounts and fees		Government and other rebates		Returns		Total
Balance at December 31, 2015	$	813	$	422	$	8	$	1,243
Provision related to current period sales		602		368		2		972
Adjustment related to prior period sales		—		—		—		—
Credit or payments made during the period		(605)		(209)		—		(814)
Balance at June 30, 2016	$	810	$	581	$	10	$	1,401

Balance at December 31, 2016	$	177	$	1,312	$	18	$	1,507
Provision related to current period sales		3,251		3,264		73		6,588
Adjustment related to prior period sales		—		62		—		62
Credit or payments made during the period		(2,730)		(2,343)		—		(5,073)
Balance at June 30, 2017	$	698	$	2,295	$	91	$	3,084

Summary of changes in the balances of the contract assets and liabilities

	Balance at Beginning of Period		Additions		Deductions		Balance at End of Period
Six months ended June 30, 2016
Contract assets	$	1,000	$	—	$	—	$	1,000
Contract liabilities:
Deferred revenue	$	92	$	470	$	(53)	$	509

Six months ended June 30, 2017
Contract assets	$	1,000	$	—	$	—	$	1,000
Contract liabilities:
Deferred revenue	$	400	$	—	$	(47)	$	353

Schedule of revenue recognized due to changes in contract asset and contract liability balances

	Three Months Ended June 30,
Revenue recognized in the period from:	2016		2017
Amounts included in the contract liability at the beginning of the period	$	15	$	23
Performance obligations satisfied in previous periods	$	—	$	—

	Six Months Ended June 30,
Revenue recognized in the period from:	2016		2017
Amounts included in the contract liability at the beginning of the period	$	30	$	47
Performance obligations satisfied in previous periods	$	—	$	—