| Composition of investment portfolio |
At June 30, 2012 and December 31, 2011, all of our securities were classified as available-for-sale. The following table presents the composition of our investment portfolio at the dates indicated (dollars in thousands).
| | | | | | | | | Gross | | | Gross | | | Estimated | | | | | | | | Par | | | Amortized | | | Unrealized | | | Unrealized | | | Fair | | | Average | | | | | Value | | | Cost | | | Gains | | | Losses | | | Value | | | Yield | | June 30, 2012 | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | US Government Agencies | | | | | | | | | | | | | | | | | | | More than ten years | | $ | 15,300 | | | $ | 18,264 | | | $ | 472 | | | $ | - | | | $ | 18,736 | | | | 3.27 | % | | | | | 15,300 | | | | 18,264 | | | | 472 | | | | - | | | | 18,736 | | | | 3.27 | % | Mortgage-backed securities | | | | | | | | | | | | | | | | | | | | | | | | | One to five years | | | 3 | | | | 3 | | | | - | | | | - | | | | 3 | | | | 0.01 | % | More than ten years | | | 11,363 | | | | 11,961 | | | | 64 | | | | (10 | ) | | | 12,016 | | | | 1.51 | % | Total | | | 11,366 | | | | 11,964 | | | | 64 | | | | (10 | ) | | | 12,019 | | | | 1.51 | % | | | | | | | | | | | | | | | | | | | | | | | | | | | Municipals | | | | | | | | | | | | | | | | | | | | | | | | | Five to ten years | | | 3,500 | | | | 4,137 | | | | 5 | | | | - | | | | 4,142 | | | | 2.56 | % | More than ten years | | | 1,550 | | | | 1,784 | | | | 15 | | | | - | | | | 1,799 | | | | 3.52 | % | Total | | | 5,050 | | | | 5,921 | | | | 20 | | | | - | | | | 5,941 | | | | 2.85 | % | | | | | | | | | | | | | | | | | | | | | | | | | | | Total investment securities | | $ | 31,716 | | | $ | 36,149 | | | $ | 557 | | | $ | (10 | ) | | $ | 36,696 | | | | 2.63 | % | | | | | | | | | | | | | | | | | | | | | | | | | | | December 31, 2011 | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | US Government Agencies | | | | | | | | | | | | | | | | | | | | | | | | | More than ten years | | $ | 2,000 | | | $ | 2,000 | | | $ | 1 | | | $ | - | | | $ | 2,001 | | | | 3.81 | % | | | | | | | | | | | | | | | | | | | | | | | | | | | Mortgage-backed securities | | | | | | | | | | | | | | | | | | | | | | | | | One to five years | | | 11 | | | | 11 | | | | - | | | | - | | | | 11 | | | | 0.01 | % | More than ten years | | | 19,870 | | | | 20,621 | | | | 220 | | | | (49 | ) | | | 20,792 | | | | 1.83 | % | Total | | | 19,881 | | | | 20,632 | | | | 220 | | | | (49 | ) | | | 20,803 | | | | 1.83 | % | | | | | | | | | | | | | | | | | | | | | | | | | | | Other investments | | | | | | | | | | | | | | | | | | | | | | | | | More than ten years | | | 7,356 | | | | 7,386 | | | | - | | | | (27 | ) | | | 7,359 | | | | 0.55 | % | | | | | | | | | | | | | | | | | | | | | | | | | | | Total investment securities | | $ | 29,237 | | | $ | 30,018 | | | $ | 221 | | | $ | (76 | ) | | $ | 30,163 | | | | 1.65 | % |
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| Investment securities available for sale that have unrealized loss position |
Investment securities available for sale that have an unrealized loss position at June 30, 2012 and December 31, 2011 are detailed below (dollars in thousands).
| | | Securities in a loss | | | Securities in a loss | | | | | | | | | | | Position for less than | | | Position for more than | | | | | | | | | | | 12 Months | | | 12 Months | | | Total | | | | | Fair | | | Unrealized | | | Fair | | | Unrealized | | | Fair | | | Unrealized | | | | | Value | | | Losses | | | Value | | | Losses | | | Value | | | Losses | | June 30, 2012 | | (in Thousands) | | Mortgage-backed securities | | $ | 2,331 | | | $ | (10 | ) | | $ | 3 | | | $ | - | | | $ | 2,334 | | | $ | (10 | ) | | | | | | | | | | | | | | | | | | | | | | | | | | | Total | | $ | 2,331 | | | $ | (10 | ) | | $ | 3 | | | $ | - | | | $ | 2,334 | | | $ | (10 | ) | | | | | | | | | | | | | | | | | | | | | | | | | | | December 31, 2011 | | | | US Treasuries | | $ | 7,358 | | | $ | (27 | ) | | $ | - | | | $ | - | | | $ | 7,358 | | | $ | (27 | ) | Mortgage-backed securities | | | 10,221 | | | | (47 | ) | | | 205 | | | | (2 | ) | | | 10,426 | | | | (49 | ) | | | | | | | | | | | | | | | | | | | | | | | | | | | Total | | $ | 17,579 | | | $ | (74 | ) | | $ | 205 | | | $ | (2 | ) | | $ | 17,784 | | | $ | (76 | ) |
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