CONSOLIDATED BALANCE SHEETS [Parenthetical] (USD $)	Dec. 31, 2012	Dec. 31, 2011
Preferred stock, par value (in dollars per share)	$ 0.01	$ 0.01
Preferred stock, shares authorized	5,000,000	5,000,000
Preferred stock, shares issued	0	0
Common stock, par value (in dollars per share)	$ 0.001	$ 0.001
Common stock, shares authorized	25,000,000	25,000,000
Common stock, shares issued	4,405,190	4,405,190
Common stock, shares outstanding	4,298,059	4,324,459
Treasury stock, shares	107,131	80,731