Consolidated Balance Sheets (Parenthetical) (USD $)	Dec. 31, 2011	Dec. 31, 2010
Consolidated Balance Sheets [Abstract]
Preferred stock, par value	$ 1	$ 1
Preferred stock, shares authorized	1,000,000	1,000,000
Preferred stock, shares issued	0	0
Common stock, par value	$ 0.03	$ 0.03
Common stock, shares authorized	35,000,000	35,000,000
Common stock, shares issued	13,419,872	13,331,872
Common stock, shares outstanding	12,966,942	12,882,673
Treasury stock, shares	452,930	449,199