Kona Grill Inc. announced earnings results for the full year ended December 31, 2018. For the full year, the company announced sales was USD 156.942 million compared to USD 179.081 million a year ago. Operating loss was USD 29.459 million compared to USD 21.086 million a year ago. Net loss was USD 31.968 million compared to USD 23.432 million a year ago. Basic loss per share was USD 2.62 compared to USD 2.32 a year ago.