Share-Based Compensation Plans - Additional Information (Detail) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Stock Based Compensation [Line Items]
Shares authorized for grants	500,000
Contractual life of stock options granted	5 years
Share based compensation arrangement by sharebased payment award options exercisable number	98,500	112,500	94,750
The intrinsic value of these share options outstanding and exercisable	$ 34,000
Compensation expense	49,000	126,000	148,000
Expected term of Risk-Free Interest Rate		3 years	3 years
Terms of Award	Restricted share awards generally vest based on two years of continuous service with one-third of the shares vesting immediately upon issuance of the shares and one-third vesting at the end of each of the next two years.
Vesting Period	2 years
Cost recognized to the restricted shares (in years)	2 years
Unrecognized compensation expense related to the restricted shares	13,000
Fair value of restricted shares vested	48,000
Options Held [Member] | Stock Awards [Member]
Stock Based Compensation [Line Items]
Compensation expense		$ 12,000	$ 30,000