Income (Loss) Per Common Share - Additional Information (Detail)	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Preferred stock convertible into common stock at rate of shares of common stock	100	100	100	100
Stock Options [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Options outstanding for the purchase of common stock	65,191	70,348	65,191	70,348
Shares included to computation of earnings per share	11,555	9,788
Equity Option [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Shares excluded from computation of diluted earnings per share			0	0
Convertible Preferred Stock [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Shares excluded from computation of diluted earnings per share			64,000	64,000
Shares included to computation of earnings per share	64,000	64,000