Computation of Basic and Diluted Loss Per Share (Detail) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Numerator
Basic and diluted loss	$ (1,390)	$ (1,568)	$ (3,677)	$ (5,765)
Denominator
Basic and diluted earnings per share - weighted average shares outstanding	1,452,548	1,360,107	1,452,303	1,202,861
Basic and diluted loss per common share	$ 0.00	$ 0.00	$ 0.00	$ 0.00