6. Accrued Allowances (Details) - USD ($) $ in Thousands	Jun. 30, 2017	Dec. 31, 2016
Accrued allowances consist of the following
Accrued returns allowance	$ 19,764	$ 18,314
Accrued price adjustments	29,992	35,234
Accrued government program rebates	5,983	7,413
Total	$ 55,739	$ 60,961