Loss Earnings Per Share Calculations (Detail) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
Schedule of Earnings Per Share, Basic and Diluted, by Common Class [Line Items]
Net loss to common shareholders	$ (10,294)	$ (743)	$ (23,186)	$ (457)
Weighted average common shares outstanding	17,961	17,953	17,958	17,886
Basic Loss Per Common Share	$ (0.57)	$ (0.04)	$ (1.29)	$ (0.03)
Net loss to common shareholders	$ (10,294)	$ (743)	$ (23,186)	$ (457)
Weighted average shares outstanding	17,961	17,953	17,958	17,886
Dilutive effects of assumed conversion and exercise of common stock options, warrants and restricted stock	0	0	0	0
Weighted average common and dilutive potential common shares outstanding	17,961	17,953	17,958	17,886
Diluted loss per common share	$ (0.57)	$ (0.04)	$ (1.29)	$ (0.03)