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Consolidated Statements of Shareholders' Equity (USD $) In Thousands, except Share data | Common Stock [Member] | Additional Paid-in Capital [Member] | Accumulated Other Comprehensive Income (Loss) [Member] | Retained Earnings [Member] | Total
--- | --- | --- | --- | --- | ---
Balances at December 31, 2009 at Dec. 31, 2009 | $ 1 | $ 71,373 | $ 474 | $ (60,343) | $ 11,505
Balances at December 31, 2009 (in Shares) at Dec. 31, 2009 | 21,250,000 |  |  |  |
Issuance of common stock under rights offering |  | 1,421 |  |  | 1,421
Issuance of common stock |  | 1,195 |  |  | 1,195
Issuance of common stock (in Shares) | 948,000 |  |  |  |
Issuance of common stock under employee stock option purchase plan |  | 15 |  |  | 15
Issuance of common stock under employee stock option purchase plan (in Shares) | 20,000 |  |  |  |
Stock-based compensation |  | 552 |  |  | 552
Stock options exercised |  | 8 |  |  | 8
Stock options exercised (in Shares) | 14,000 |  |  |  | (13,750)
Warrants issued for financing |  | 528 |  |  | 528
Warrants exercised |  | 2 |  |  | 2
Warrants exercised (in Shares) | 1,730,000 |  |  |  |
Foreign currency translation adjustment |  |  | (51) |  | (51)
Net loss |  |  |  | (8,517) | (8,517)
Balances at Dec. 31, 2010 | 1 | 75,094 | 423 | (68,860) | 6,658
Balances (in Shares) at Dec. 31, 2010 | 23,962,000 |  |  |  |
Issuance of common stock |  | 463 |  |  | 463
Issuance of common stock (in Shares) | 412,000 |  |  |  |
Issuance of common stock under employee stock option purchase plan |  | 47 |  |  | 47
Issuance of common stock under employee stock option purchase plan (in Shares) | 157,000 |  |  |  |
Stock-based compensation |  | 319 |  |  | 319
Stock-based compensation (in Shares) | 215,000 |  |  |  |
Stock options exercised (in Shares) | 7,000 |  |  |  | (7,500)
Warrants issued for financing |  | 33 |  |  | 33
Warrants exercised |  | 6 |  |  | 6
Warrants exercised (in Shares) | 160,000 |  |  |  |
Foreign currency translation adjustment |  |  | (3) |  | (3)
Net loss |  |  |  | (6,055) | (6,055)
Balances at Dec. 31, 2011 | 1 | 75,962 | 420 | (74,915) | 1,468
Balances (in Shares) at Dec. 31, 2011 | 24,913,000 |  |  |  | 24,913,135
Issuance of common stock | 3 | 4,798 |  |  | 4,801
Issuance of common stock (in Shares) | 19,600,000 |  |  |  |
Issuance of common stock under employee stock option purchase plan |  | 25 |  |  | 25
Issuance of common stock under employee stock option purchase plan (in Shares) | 186,000 |  |  |  |
Stock-based compensation |  | 200 |  |  | 200
Foreign currency translation adjustment |  |  | 40 |  | 40
Net loss |  |  |  | (5,709) | (5,709)
Balances at Dec. 31, 2012 | $ 4 | $ 80,985 | $ 460 | $ (80,624) | $ 825
Balances (in Shares) at Dec. 31, 2012 | 44,699,000 |  |  |  | 44,698,650

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