Quarterly report pursuant to Section 13 or 15(d)

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

v2.4.0.8
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
 3 Months Ended 6 Months Ended
Jun. 30, 2014
Jun. 30, 2013
Jun. 30, 2014
Jun. 30, 2013
Schedule Of Cash Proceeds And Weighted Average Fair Values Of Stock Options [Line Items]        
Proceeds from stock options exercised $ 8 $ 621 $ 255 $ 697
Intrinsic value of stock options exercised 12 [1] 830 [1] 95 [1] 853 [1]
Weighted-average fair value of options granted during period $ 1.32 $ 4.27 $ 1.73 $ 4.00
Total fair value of shares vested during the period $ 302 $ 404 $ 648 $ 718
[1] 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.