Annual report pursuant to Section 13 and 15(d)

Consolidated Balance Sheets (Parenthetical)

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Consolidated Balance Sheets (Parenthetical) (USD $)
Dec. 31, 2013
Dec. 31, 2012
Consolidated Balance Sheets [Abstract]    
Trade accounts receivable, allowance for doubtful accounts $ 69,000 $ 69,000
Preferred stock, par value $ 1.00 $ 1.00
Preferred stock, shares authorized 3,000,000 3,000,000
Preferred stock, shares issued 0 0
Common stock, par value $ 0.05 $ 0.05
Common stock, shares authorized 30,000,000 30,000,000
Common stock, shares issued 8,553,320 8,474,896
Common stock, shares outstanding 8,553,320 8,474,896