Basic EPS to diluted EPS (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
Components Of Basic And Diluted Earning Per Share [Line Items]
Net income/(loss)	$ 2,713		$ (882)	$ 4,450		$ (6,030)
Less: Earnings allocated to participating securities	2,713	[1]		4,450	[1]
Net income/(loss) available to common shareholders after required adjustments for the calculation of basic and diluted earnings per common share			$ (882)			$ (6,030)
Basic weighted average common shares outstanding	13,328,103		10,300,351	12,614,487		9,739,922
Weighted average effect of dilutive securities:
Preferred Stock	60,026,463			59,941,389
Stock Options	6,482,703			6,792,704
Warrants	509,163			811,956
Diluted weighted average common shares outstanding	80,346,432		10,300,351	80,160,536		9,739,922
Earnings per common share
Basic			$ (0.09)			$ (0.62)
Diluted			$ (0.09)			$ (0.62)

[1] In a period with net income, both earnings and dividends (if any) are allocated to participating securities. In a period with a net loss, only dividends (if any) are allocated to participating securities.