v2.4.0.8
Consolidated Statements of Cash Flows (USD $)
In Thousands, unless otherwise specified
 12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Operating activities:      
Net loss $ (1,406) $ (945) $ (5,328)
Adjustments to reconcile net loss to net cash used in operating activities:      
Provision for obsolete inventory 492 858 1,579
Depreciation and amortization 3,407 2,942 3,112
Loss on disposal of assets 1 36 80
Stock-based compensation and warrant expense 1,069 161 563
Changes in operating assets and liabilities:      
Accounts receivable (8,457) (1,158) (4,498)
Bank acceptance receivable 1,036 (1,034) 0
Inventory (7,520) (538) (1,578)
Other current assets (4,622) (261) 473
Accounts payable 8,079 (961) 1,534
Accrued liabilities 1,369 542 (62)
Net cash used in operating activities (6,552) (358) (4,125)
Investing activities:      
Purchase of short-term investments (7,970) 0 0
Purchase of property, plant and equipment (9,600) (3,178) (1,790)
Proceeds from disposal of equipment 0 138 387
Deposits and deferred charges (43) (41) (1)
Purchase of intangible assets (123) (209) (167)
Net cash used in investing activities (17,736) (3,290) (1,571)
Financing activities:      
Proceeds from issuance of notes payable and long-term debt 2,851 845 0
Principal payments of long-term debt and notes payable (285) (707) (245)
Proceeds from line of credit borrowings 23,192 15,560 16,098
Repayments of line of credit borrowings (23,008) (13,692) (15,200)
Proceeds from bank acceptance payable 6,778 3,746 662
Repayments of bank acceptance payable (6,026) (2,894) 0
Repayments of shareholder loans 0 (150) (1,200)
Increase in restricted cash (249) (193) (155)
Exercise of stock options 173 5 16
Exercise of warrants 494 0 0
Common stock issued for consultant services 0 0 1
Proceeds from initial public offering, net 31,448 0 0
Issuance of preferred stock, net 0 10,234 2,859
Net cash provided by financing activities 35,368 12,754 2,836
Effect of exchange rate changes on cash 203 (150) 136
Net increase (decrease) in cash 11,283 8,956 (2,724)
Cash and cash equivalents at beginning of year 10,723 1,768 4,492
Cash and cash equivalents at end of year 22,006 10,723 1,768
Cash paid for:      
Interest 1,133 1,469 1,392
Income taxes 1 0 1
Conversion of shareholders' loan to preferred stock $ 0 $ 760 $ 1,100