CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($) shares in Thousands	Dec. 31, 2018	Dec. 31, 2017
Current assets:
Allowances for sales returns and doubtful accounts	$ 1,339,000	$ 11,142,000
Stockholders' deficit:
Commons stock, par value	$ 0.01	$ 0.01
Common stock, shares authorized	100,000	100,000
Common stock, shares issued	42,339	42,339
Common stock, shares outstanding	41,948	41,356
Preferred stock, par value	$ 0.01	$ 0.01
Preferred stock, shares authorized	1,000	1,000
Preferred stock, shares issued	0	0
Treasury stock, shares held	391	983