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10. Stockholders Equity (Details Narrative) (USD $) | 12 Months Ended
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Dec. 31, 2012 | Dec. 31, 2011
Stock Based Compensation |  |
Stock-based compensation expense | $ 185,000 | $ 332,000
Options outstanding under 2004 Plan | 850,000 |
Options outstanding under 2010 Plan | 964,000 |
Intrinsic value of options exercised |  | $ 26,000
Stock option exercises, cash received |  | 36,000
Weighted average grant-date fair value | $ 0.15 | $ 0.32
Unamortized compensation expense | $ 46,000 |
Weighted average remaining service period | 7 years 8 months 26 days |
Preferred Stock issued and outstanding | 156,000 | 161,000
Common shares issued for payment of dividends | 73,000 | 37,000
Cumulative convertible preferred stock converted into common stock | 15,000 |
Conversion rate | 32.76% |

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