SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES Allowance for Sales Returns and Exchanges (Tables)

12 Months Ended

Dec. 31, 2019

Allowance for sales returns and exchanges [Abstract]

Allowance for Sales Returns and Exchanges [Table Text Block]

The following table sets forth the activity in the allowance for sales returns and exchanges for the years ended December 31, 2019, 2018, and 2017 (in thousands):

	Year Ended December 31,
	2019			2018			2017
Allowance for sales returns and exchanges – beginning of year	$	9,003		$	9,916		$	7,861
Additions and adjustments to the allowance	15,999			12,121			14,494
Deductions against the allowance	(16,772		)	(13,034		)	(12,439		)
Allowance for sales returns and exchanges – end of year	$	8,230		$	9,003		$	9,916