The remaining warrant represents the right to purchase 150,000 shares of Plumas Bancorp common stock at an exercise price of $5.25 per share. The warrant is associated with the Bancorp's subordinated debenture, which was fully paid in April, 2015. Net Interest Income and Net Interest Margin Net interest income, on a nontax-equivalent basis, was $6.1 million for the three months ended September 30, 2016, an increase of $596 thousand, or 11%, from $5.5 million for the same period in 2015.