Kona Grill, Inc. announced preliminary sales results for the fourth quarter and full year ended December 31, 2016. For the fourth quarter 2016, restaurant sales increased 14.5% to $43.6 million, compared to $38.1 million for the same quarter last year. Same-store sales decreased 4.1% compared to an increase of 3.2% in the fourth quarter of 2015. For 2016, restaurant sales increased 18.5% to $169.5 million, compared to $143.0 million for the previous year. The increase was driven by sales contributions from eight restaurant openings, including three in the fourth quarter, incremental sales from six non comparable restaurants opened in the previous year and same-store sales growth of 0.5% compared to an increase of 2.0% in 2015. The company has now generated positive same-store sales in each of the last six years.