Trust fees for the quarter increased 5.7% compared to the same period last year, resulting mainly from growth in both personal and institutional trust fees. Deposit account fees declined $814 thousand, or 3.9%, compared to last year as overdraft fees declined by $1.7 million, but were offset by growth in various other deposit fees of $892 thousand, or 38.5%. Capital market fees increased approximately 1% over the same period last year but were down $1.9 million compared to the previous quarter. Other non-interest income in the previous quarter included a $3.0 million fair value loss on an office building which is held for sale. The increase in other non-interest income over the same period in the previous year resulted from higher lease-related fees and growth in fees on sales of tax credits to customers in the current quarter.
Investment Securities Gains and Losses
Net securities gains amounted to $1.3 million in the 2 nd quarter of 2012, compared to net gains of $4.0 million in the previous quarter and net gains of $2.0 million in the same quarter last year. The current quarter included a gain of $1.7 million related to fair value adjustments and sales of the Company's private equity investments. Minority interest expense related to these gains totaled $347 thousand and is included in non-controlling interest expense.
Also during the current quarter, the Company recorded credit-related impairment losses of $350 thousand on certain non-agency guaranteed mortgage-backed securities identified as other-than-temporarily impaired, compared to losses of $320 thousand in the previous quarter and $650 thousand in the same quarter last year. The cumulative credit-related impairment on these bonds totaled $10.5 million at quarter end. At June 30, 2012, the fair value of non-agency guaranteed mortgage-backed securities identified as other-than-temporarily impaired totaled $109.9 million, compared to $146.9 million at June 30, 2011.