After the original charges against her were dismissed last October a Castleford woman again faces charges of embezzlement.  The Castleford School District secretary, 54 year old Brenda Thomson, has been charged with embezzlement.  Thomson, who was the district bookkeeper, is accused of overpaying herself over $18,000 over a three year period.  She is also accused of incurring  an additional $16,000 in fees and lost payments.  She was arraigned in Twin Falls County yesterday and is being charged with grand theft.