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CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $)
In Thousands, unless otherwise specified
 12 Months Ended
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2010
Cash flows used in operating activities:      
Net income (loss) $ (5,987) $ (1,904) $ 570
Adjustments to reconcile net (loss) income to net cash used in operating activities:      
Depreciation 119 155 294
Share-based compensation 672 823 564
Increase (decrease) in allowance for doubtful accounts 20    (609)
Amortization of discount on long-term loan       141
Revaluation of warrants presented at fair value       524
Increase (decrease) in severance pay, net 10 60 (46)
Decrease (increase) in trade receivables 2,060 1,369 (2,632)
Decrease (increase) in other current assets 767 (1,782) (1,101)
Increase in inventories (222) (2,661) (1,063)
Increase (decrease) in trade payables (775) 2 1,634
Increase (decrease) in employees and payroll accrued (88) 74 272
Increase (decrease) in other payables and accrued expenses (131) 402 (1,192)
Decrease in interest on long-term loan       37
Interest on restricted cash (15)      
Interest and linkage on short term loan 27      
Increase in deferred revenue and advances from customers 1,082 112 109
Net cash used in operating activities (2,461) (3,350) (2,498)
Cash flows used in investing activities:      
Restricted cash (1,437)      
Purchase of property and equipment (66) (103) (56)
Net cash used in investing activities (1,503) (103) (56)
Cash flows from financing activities:      
Receipts of short term bank credit 1,058      
Receipts of short term loan (includes $777 from related party) 1,500      
Payments of long term loan       (1,333)
Proceeds from issuance of Ordinary Shares and warrants, net of issuance expenses       5,361
Exercise of warrants    623 353
Exercise of options 45 144 643
Net cash provided by financing activities 2,603 767 5,024
Foreign currency translation adjustments on cash and cash equivalents (66) (157)   
Increase (decrease) in cash and cash equivalents (1,427) (2,843) 2,470
Cash and cash equivalents at beginning of year 2,901 5,744 3,274
Cash and cash equivalents at end of year 1,474 2,901 5,744
Non-cash investing activities:      
Purchase of property and equipment on credit 19 3 8
Property and equipment transferred to be used as inventory       7
Inventory transferred to be used as property and equipment 4 20   
Interest paid in cash $ 6    $ 95