Annual report pursuant to Section 13 and 15(d)

Cash Proceeds Along with Fair Value Disclosures Related to Grants Exercises and Vesting Options (Detail)

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Cash Proceeds Along with Fair Value Disclosures Related to Grants Exercises and Vesting Options (Detail) (USD $)
In Thousands, except Per Share data, unless otherwise specified
 12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Schedule Of Cash Proceeds And Weighted Average Fair Values Of Stock Options [Line Items]      
Proceeds from stock options exercised $ 707 $ 455 $ 1,244
Tax benefit related to stock options exercised    [1]    [1]    [1]
Intrinsic value of stock options exercised 860 [2] 91 [2] 1,328 [2]
Weighted-average fair value of options granted $ 1.82 $ 1.39 $ 2.97
Total fair value of shares vested during the year $ 1,544 $ 1,737 $ 1,259
[1] Excess tax benefits received related to stock option exercises are presented as financing cash inflows. Currently the Company does not receive a tax benefit related to the exercise of stock options due to its net operating losses.
[2] The intrinsic value of stock options exercised is the amount by which the market price of the stock on the date of exercise exceeded the market price of the stock on the date of grant.