XML 22 R46.htm IDEA: XBRL DOCUMENT v2.4.0.6
Share Based Compensation (Summary of Total Unrecognized Compensation Cost Related to Stock-Based Compensation) (Detail) (USD $)
12 Months Ended
Dec. 31, 2012
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Unrecognized Compensation Cost $ 33,647
Stock Options [Member]
 
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Unrecognized Compensation Cost 28,429
Weighted Average Period of Expense Recognition (in Years) 2 years 5 months 16 days
Restricted Stock [Member]
 
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Unrecognized Compensation Cost $ 5,218
Weighted Average Period of Expense Recognition (in Years) 1 year 2 months 9 days