CONSOLIDATED BALANCE SHEETS (Unaudited) (Parenthetical) (USD $)	Mar. 31, 2014	Dec. 31, 2013
Common shareholders' equity:
Common stock, par value (in dollars per share)	$ 0.005	$ 0.005
Common stock, authorized (in shares)	50,000,000	50,000,000
Common stock, issued (in shares)	18,993,053	18,972,247
Common share Outstanding (in shares)	18,993,053	18,972,247