Quarterly report pursuant to sections 13 or 15(d)

Stock Plans and Non-Qualified Option Agreement (Details)

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Stock Plans and Non-Qualified Option Agreement (Details) (USD $)
3 Months Ended 6 Months Ended
Jun. 30, 2013
Jun. 30, 2012
Jun. 30, 2013
Jun. 30, 2012
Shares [Abstract]        
Options outstanding (in shares)     2,644,000 3,039,833
Granted (in shares)     0 0
Exercised (in shares)     0 0
Forfeited (in shares)     (690,000) (425,333)
Options outstanding (in shares) 1,954,000 [1] 2,614,500 [2] 1,954,000 [1] 2,614,500 [2]
Options exercisable at year end (in shares) 1,754,000 [1] 2,064,500 [2] 1,754,000 [1] 2,064,500 [2]
Options vested and expected to be vested at end of year (in shares) 1,954,000 2,614,500 1,954,000 2,614,500
Weighted Average Exercise Price [Abstract]        
Options outstanding (in dollars per share)     $ 1.96 $ 1.98
Granted (in dollars per share)     $ 0 $ 0
Exercised (in dollars per share)     $ 0 $ 0
Forfeited (in dollars per share)     $ 1.87 $ 1.90
Options outstanding (in dollars per share) $ 2.00 [1] $ 1.99 [2] $ 2.00 [1] $ 1.99 [2]
Options exercisable (in dollars per share) $ 2.05 [1] $ 2.13 [2] $ 2.05 [1] $ 2.13 [2]
Options vested and expected to be vested (in dollars per share) $ 2.00 $ 1.99 $ 2.00 $ 1.99
Weighted Average Remaining Contractual Term [Abstract]        
Options outstanding end of period (in years) 3 years [1] 3 years 9 months 18 days [2]    
Options exercisable (in years) 2 years 10 months 24 days [1] 3 years [2]    
Options vested and expected to be vested (in years) 3 years 3 years 9 months 18 days    
Aggregate Intrinsic Value [Abstract]        
Exercised     $ 0 $ 0
Options outstanding end of year 0 [1] 0 [2] 0 [1] 0 [2]
Options exercisable 0 [1] 0 [2] 0 [1] 0 [2]
Options vested and expected to be vested $ 0 $ 0 $ 0 $ 0
Options exercise price range, minimum (in dollars per share)     $ 1.10 $ 1.41
Options exercise price range, maximum (in dollars per share)     $ 2.95 $ 2.95
[1] Options with exercise prices ranging from $1.10 to $2.95
[2] Options with exercise prices ranging from $1.41 to $2.95