Accrued Expenses (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
Other Income and Expenses [Abstract]
Professional fees	$ 1,661	$ 2,153
Payroll	1,353	1,908
Interest expense	1,097	1,042
Medicaid and Medicare rebates	827	383
Wholesaler fees	794	203
Royalties	418	222
Clinical studies	334	334
Rebates	187	714
Inventory and Supplies	129	1,809
Capital expenditures	30	275
Income Tax	49	45
Other	655	754
Accrued expenses	$ 7,534	$ 9,842