CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
CURRENT ASSETS
Cash and cash equivalents	$ 10,428	$ 16,552
Due from Zhenfa (Note 15)	5,260
Accounts receivable, trade, less allowances for doubtful accounts of $575 and $833 in 2015 and 2014, respectively	8,475	12,057
Inventories, net	6,704	8,248
Income tax receivable	8,252	8,252
Prepaid expenses	1,656	1,789
Deferred tax assets	72	72
Other current assets	3,001	2,283
Total current assets	43,848	49,253
Property, plant and equipment, net	20,834	20,195
Other long-term assets	340	354
Total assets	65,022	69,802
CURRENT LIABILITIES
Accounts payable	3,852	2,653
Accrued liabilities (Note 7)	3,540	2,780
Income taxes payable	1,880	1,865
Other current liabilities		204
Total current liabilities	9,272	7,502
Deferred tax liabilities	72	72
Other long-term liabilities	4,605	4,505
Total liabilities	$ 13,949	$ 12,079
COMMITMENTS AND CONTINGENCIES (Note 8)
Stockholders' Equity
Preferred stock, $0.01 par value, 20,000,000 shares authorized; no shares issued and outstanding
Common stock, $0.01 par value, 200,000,000 shares authorized; 18,259,719 and 18,258,479 issued and outstanding, respectively, in 2015 and 18,074,291 and 18,073,051 issued and outstanding, respectively, in 2014	$ 181	$ 181
Treasury stock, at cost	(57)	(57)
Additional paid-in capital	230,628	230,276
Accumulated deficit	(174,557)	(168,618)
Accumulated other comprehensive loss, net	(5,122)	(4,059)
Total stockholders' equity	51,073	57,723
Total liabilities and stockholders' equity	$ 65,022	$ 69,802