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CONSOLIDATED BALANCE SHEETS (in thousands, except share data) (Parenthetical) (USD $) In Thousands, except Share data, unless otherwise specified | Dec. 31, 2013 | Dec. 31, 2012
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CURRENT ASSETS: |  |
Trade accounts receivable, net of allowance | $ 87 | $ 89
STOCKHOLDERS' EQUITY |  |
Preferred stock, authorized shares (including Series A) | 5,000,000 | 5,000,000
Preferred stock, issued shares | 0 | 0
Preferred stock, outstanding shares | 0 | 0
Common stock, authorized shares | 30,000,000 | 30,000,000
Common stock, issued shares | 7,786,053 | 7,741,686
Common stock, outstanding shares | 7,786,053 | 7,741,686

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