Consolidated Balance Sheets (Parenthetical) (USD $)	Sep. 30, 2011	Dec. 31, 2010
Stockholders' equity:
Series A Preferred stock, par value (in dollars per share)	$ 0.50	$ 0.50
Series A Preferred stock, shares authorized (in shares)	700,000	700,000
Series A Preferred stock, outstanding (in shares)	0	0
Common stock, par value (in dollars per share)	$ 0.001	$ 0.001
Common stock, shares authorized (in shares)	10,000,000	10,000,000
Common stock, shares issued (in shares)	6,530,743	6,445,743
Treasury stock (in shares)	169,633	151,875