Reconciliation of Numerator and Denominator Used in Calculation of Loss Per Share (Detail) (USD $) In Thousands, except Per Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011
Basic and Diluted:
Reported net loss(in thousands)	$ (1,514)	$ (2,876)
Less unpaid and undeclared preferred stock dividends	(266)	(266)
Net loss applicable to common stockholder	$ (1,780)	$ (3,142)
Weighted average common shares outstanding	72,224,186	58,223,600
Net loss per common share	$ (0.02)	$ (0.05)