Share-Based Compensation (Detail) - Schedule of Share-based Compensation, Stock Options, Activity (USD $)	6 Months Ended
	Jun. 30, 2012
Outstanding at beginning of year	12,000
Outstanding at beginning of year (in Dollars per share)	$ 4.99
Granted
Granted (in Dollars per share)
Exercised
Exercised (in Dollars per share)
Terminated (in Dollars per share)	$ 5,000
Terminated	4.14
Outstanding at end of period	7,000
Outstanding at end of period (in Dollars per share)	$ 5.59
Outstanding at end of period	2.0
Vested and expected to vest at end of period	7,000
Vested and expected to vest at end of period (in Dollars per share)	$ 5.59
Vested and expected to vest at end of period	2.0
Vested and expected to vest at end of period (in Dollars)
Exercisable at end of period	7,000
Exercisable at end of period (in Dollars per share)	$ 5.59
Exercisable at end of period	2 years
Exercisable at end of period (in Dollars)