Annual report pursuant to Section 13 and 15(d)

Reconciliation of Statutory Federal Income Tax Rate to Provision for Income Tax (Detail)

v2.4.0.6
Reconciliation of Statutory Federal Income Tax Rate to Provision for Income Tax (Detail) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2010
Schedule of Components of Deferred Tax Provision [Line Items]      
Statutory federal income tax rate (at 35%) $ 1,637 $ 4,364 $ 1,638
Effect of state taxes, net of federal (2,278) 1,102 525
Permanent items 788 696 174
ISO benefit     338
Other, net 6 (52) 20
Provision for (benefit from) income taxes $ 153 $ 6,110 $ 2,695