Annual report pursuant to Section 13 and 15(d)

Stock Option Plans (Summary of Stock Option Activity) (Detail)

v2.4.0.8
Stock Option Plans (Summary of Stock Option Activity) (Detail) (USD $)
12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Number of shares outstanding    
Beginning Balance 192,729 267,856
Granted 45,000 0
Exercised 0 0
Expired or Forfeited (23,211) (75,127)
Ending Balance 214,518 192,729
Weighted Average Exercise Price    
Beginning Balance $ 10.68 $ 8.87
Granted $ 2.00 $ 0
Exercised $ 0 $ 0
Expired/Forfeited $ 2.71 $ 0.65
Ending Balance $ 9.72 $ 10.68
Exercised Price Range    
Beginning Balance, lower limit   $ 0.46
Beginning Balance, upper limit   $ 17.50
Granted $ 2.00 $ 0
Exercised $ 0 $ 0
Expired or Forfeited, lower limit $ 1.94 $ 0.46
Expired or Forfeited, upper limit $ 17.50 $ 2.17
Ending Balance, lower limit $ 1.71 $ 1.71
Ending Balance, upper limit $ 17.50 $ 17.50