Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented.

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+ Details

Option and Warrants to Purchase Company's Common Stock (Detail)	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Options Held
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Anti dilutive securities of earning per share amount	425,709	395,633	395,285
Warrant
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Anti dilutive securities of earning per share amount			88,273