Condensed Consolidated Balance Sheets (Parenthetical) (USD $) In Thousands, except Share data, unless otherwise specified	Sep. 30, 2013	Dec. 31, 2012
Statement Of Financial Position [Abstract]
Accounts receivable-trade, net of allowance	$ 354	$ 225
Redeemable convertible preferred stock, Series A, net of discount	775	806
Redeemable convertible preferred stock, par value	$ 0.001	$ 0.001
Redeemable convertible preferred stock, shares authorized	1,000,000	1,000,000
Redeemable convertible preferred stock, shares issued	1,000,000	1,000,000
Redeemable convertible preferred stock, shares outstanding	1,000,000	1,000,000
Common stock, par value	$ 0.001	$ 0.001
Common stock, shares authorized	50,000,000	50,000,000
Common stock, shares issued	8,004,173	7,919,032
Common stock, shares outstanding	8,004,173	7,919,032
Treasury stock, shares	49,863	20,222
Retained earnings; accumulated statutory reserves in equity method investments	$ 1,857	$ 1,620