BIRMINGHAM, Ala. (AP) ¿ Retailer Books-A-Million Inc. said Thursday its second-quarter earnings more than doubled on lower interest expenses despite lower sales. The company earned $1.5 million, or 10 cents per share, compared with $645,000, or 4 cents per share, a year ago. Revenue fell slightly to $122.4 million, from $123.3 million a year earlier. Same-store sales, or sales at stores open at least a year, fell 4.9 percent in the quarter. "The sales environment remained challenging during the quarter, and our results reflected the difficult comparison to last year's release of Stephanie Meyer's blockbuster Breaking Dawn," CEO Clyde Anderson said in a statement. Shares fell 24 cents, or 2.1 percent, to $11.07 in aftermarket trading. The stock closed up 76 cents, or 7.2 percent, to $11.31 in the regular session.