Accrued And Other Liabilities (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
ACCRUED AND OTHER LIABILITIES
Accrued employee compensation and benefits	$ 2,432	$ 3,642
Reserve for product returns	7,650	7,854
Product-related accruals (see Note 2)	5,489	5,751
Accrued interest on debt (see Note 13)	729	410
Accrued manufacturing costs	6,720	1,238
Other accrued liabilities	3,859	2,580
Total	$ 26,879	$ 21,475