Build-A-Bear Workshop Inc. shares slid 4.8% in premarket trade Wednesday, after the company posted a loss for the fourth quarter and said weakness in North America and Brexit strains weighed on earnings. The retailer said Wednesday it had a net loss of $10.4 million, or 72 cents a share, in its fiscal fourth quarter to Feb. 2, after earnings of $7.7 million, or 49 cents a share, in the year-earlier period. Excluding certain charges, the company had an adjusted loss per share of 5 cents, compared with a FactSet consensus for EPS of 35 cents. Revenue fell to $98.5 million from $115.5 million, missing the $99.9 million FactSet consensus. "We believe there were a number of unusual challenges that converged to negatively impact our financial results last year," Chief Executive Sharon Price John said in a statement. These included weakness in North America, the company's biggest market, which resulted in a low single-digit sales decline and modest profit on an adjusted basis. It also included the impact on consumer sentiment of Brexit on the U.K. market, the company's biggest overseas market. "Other impacts for the year included the full-year closure of our most profitable, multi-million-dollar retail store, the liquidation of Toys "R" Us, the impact of new accounting standards and tax policies, and lower licensed product sales due to the significant reduction in family-centric movie properties," the CEO said. The company is now expecting fiscal 2019 revenue to rise in the mid to high single digits. The current FactSet consensus is for revenue to grow about 3%. Shares have fallen 32% in the last 12 months, while the S&P 500 has gained about 1%.