| 2012/03 | 2013/03 | 2014/03 | 2015/03 | 2016/03 | 2017/03 | 2018/03 | 2019/03 | 2020/03 | 2021/03 | 2022/03 | 2023/03 | 2024/03 | 2025/03 | |
| 売上高 | 79,015 | 79,787 | 83,379 | 89,887 | 86,068 | 98,729 | 104,825 | 108,378 | 114,327 | 110,206 | 113,997 | 120,521 | 128,194 | 111,550 |
| 売上成長率（％） | - | |||||||||||||
| 売上原価 | - | - | - | 71,298 | 67,905 | 80,528 | 86,406 | 89,138 | 94,017 | 90,239 | 94,985 | 100,782 | 106,129 | 88,240 |
| 売上総利益 | - | - | - | 18,588 | 18,164 | 18,201 | 18,419 | 19,240 | 20,310 | 19,967 | 19,011 | 19,739 | 22,065 | 23,310 |
| 売上総利益率（％） | - | - | - | |||||||||||
| 営業利益率 (%) | - | - | - | |||||||||||
| 営業利益 | - | - | - | 7,416 | 6,779 | 6,224 | 5,847 | 6,009 | 6,316 | 6,072 | 4,705 | 4,503 | 6,244 | 6,851 |
| 営業費用 | - | - | - | 11,172 | 11,385 | 11,977 | 12,572 | 13,231 | 13,994 | 13,895 | 14,306 | 15,236 | 15,821 | 16,459 |
| 経常（税引前）利益 | 1,634 | 3,520 | 4,875 | 7,628 | 7,037 | 6,585 | 6,312 | 6,409 | 6,708 | 6,500 | 5,238 | 4,903 | 6,602 | 6,794 |
| 経常（税引前）利益率（％） | 2.1 | 4.4 | 5.8 | 8.5 | 8.2 | 6.7 | 6 | 5.9 | 5.9 | 5.9 | 4.6 | 4.1 | 5.2 | 6.1 |
| 法人税等合計 | - | - | - | 2,454 | 2,222 | 1,972 | 1,878 | 2,045 | 2,085 | 1,946 | 1,447 | 1,674 | 1,993 | 2,251 |
| 実効税率（％） | - | - | - | |||||||||||
| 純利益 | 749 | 2,335 | 2,073 | 5,420 | 4,815 | 4,495 | 4,434 | 4,352 | 4,406 | 4,549 | 3,326 | 3,428 | 4,414 | 4,543 |
| 純利益率（％） | ||||||||||||||
| 一株あたり利益 | 27.41 | 76.26 | 85.3 | 148.89 | 132.27 | 123.49 | 121.82 | 119.57 | 121.05 | 124.97 | 91.38 | 95.05 | 130.61 | 134.77 |
| 希薄化後一株あたり利益 | 27.41 | 76.26 | 85.3 | 148.89 | 132.27 | 123.49 | 121.82 | 119.57 | 121.05 | 124.97 | 91.38 | 95.05 | 130.61 | 134.77 |
| 配当性向（%） | ||||||||||||||
| 一株あたり配当金 | 8 | 8 | 10 | 15 | 27 | 30 | 30 | 35 | 35 | 35 | 35 | 35 | 40 | 54 |
| EBITDA | - | - | - | |||||||||||
| EBITDAマージン（％） | - | - | - |