CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) (USD $)	Sep. 30, 2014	Dec. 31, 2013
Accounts receivable, allowance for sales returns and doubtful accounts	$ 573,000	$ 647,000
Preferred stock, par value	$ 0.001	$ 0.001
Preferred stock, authorized	1,500,000	1,500,000
Preferred stock, shares issued	0	0
Preferred stock, shares outstanding	0	0
Common stock, par value	$ 0.001	$ 0.001
Common stock, shares authorized	20,000,000	20,000,000
Common stock, issued	12,368,249	13,143,309
Common stock, outstanding	12,058,314	13,115,642