Shareholder Report, Average Annual Return (Details) |
6 Months Ended | 12 Months Ended | 60 Months Ended | 88 Months Ended | 120 Months Ended |
|---|---|---|---|---|---|
Mar. 31, 2026 |
Mar. 31, 2026 |
Mar. 31, 2026 |
Mar. 31, 2026 |
Mar. 31, 2026 |
|
| C000142731 | |||||
| Average Annual Return [Line Items] | |||||
| Line Graph and Table Measure Name | Conestoga Small Cap Fund - Institutional Class | ||||
| C000012946 | |||||
| Average Annual Return [Line Items] | |||||
| Line Graph and Table Measure Name | Conestoga Small Cap Fund - Investors Class | ||||
| C000136097 | |||||
| Average Annual Return [Line Items] | |||||
| Line Graph and Table Measure Name | Conestoga SMid Cap Fund - Institutional Class | ||||
| C000136096 | |||||
| Average Annual Return [Line Items] | |||||
| Line Graph and Table Measure Name | Conestoga SMid Cap Fund - Investors Class | ||||
| C000232594 | |||||
| Average Annual Return [Line Items] | |||||
| Line Graph and Table Measure Name | Conestoga Discovery Fund - Institutional Class | ||||
| C000232593 | |||||
| Average Annual Return [Line Items] | |||||
| Line Graph and Table Measure Name | Conestoga Discovery Fund - Investors Class | ||||
| Without Sales Load [Member] | C000142731 | |||||
| Average Annual Return [Line Items] | |||||
| Average Annual Return, Percent | (7.56%) | (4.56%) | (1.85%) | 8.96% | |
| Without Sales Load [Member] | C000012946 | |||||
| Average Annual Return [Line Items] | |||||
| Average Annual Return, Percent | (7.66%) | (4.75%) | (2.04%) | 8.75% | |
| Without Sales Load [Member] | C000136097 | |||||
| Average Annual Return [Line Items] | |||||
| Average Annual Return, Percent | (12.82%) | (9.92%) | (1.10%) | 9.81% | |
| Without Sales Load [Member] | C000136096 | |||||
| Average Annual Return [Line Items] | |||||
| Average Annual Return, Percent | (12.93%) | (10.15%) | (1.34%) | 9.53% | |
| Without Sales Load [Member] | C000232594 | |||||
| Average Annual Return [Line Items] | |||||
| Average Annual Return, Percent | (9.01%) | 17.78% | (3.64%) | 7.88% | |
| Without Sales Load [Member] | C000232593 | |||||
| Average Annual Return [Line Items] | |||||
| Average Annual Return, Percent | (9.19%) | 17.35% | (3.87%) | 7.62% | |
| Russell 3000 Total Return Index | |||||
| Average Annual Return [Line Items] | |||||
| Line Graph and Table Measure Name | Russell 3000<sup style="inset: 1.5px 0px 4px; box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 700; grid-area: auto; line-height: 0px; margin: 0px; overflow: visible; position: relative; text-align: center; text-align-last: auto; white-space-collapse: preserve-breaks;">®</sup> Index | ||||
| Average Annual Return, Percent | (1.65%) | 18.09% | 10.87% | 13.72% | |
| Russell 3000 Total Return Index | |||||
| Average Annual Return [Line Items] | |||||
| Line Graph and Table Measure Name | Russell 3000<sup style="inset: 1.5px 0px 4px; box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 700; grid-area: auto; line-height: 0px; margin: 0px; overflow: visible; position: relative; text-align: center; text-align-last: auto; white-space-collapse: preserve-breaks;">®</sup> Index | ||||
| Average Annual Return, Percent | (1.65%) | 18.09% | 10.87% | 13.72% | |
| Russell 3000 Total Return Index | |||||
| Average Annual Return [Line Items] | |||||
| Line Graph and Table Measure Name | Russell 3000<sup style="inset: 1.5px 0px 4px; box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 700; grid-area: auto; line-height: 0px; margin: 0px; overflow: visible; position: relative; text-align: center; text-align-last: auto; white-space-collapse: preserve-breaks;">®</sup> Index | ||||
| Average Annual Return, Percent | (1.65%) | 18.09% | 10.87% | 13.72% | |
| Russell 3000 Total Return Index | |||||
| Average Annual Return [Line Items] | |||||
| Line Graph and Table Measure Name | Russell 3000<sup style="inset: 1.5px 0px 4px; box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 700; grid-area: auto; line-height: 0px; margin: 0px; overflow: visible; position: relative; text-align: center; text-align-last: auto; white-space-collapse: preserve-breaks;">®</sup> Index | ||||
| Average Annual Return, Percent | (1.65%) | 18.09% | 10.87% | 13.72% | |
| Russell 3000 Total Return Index | |||||
| Average Annual Return [Line Items] | |||||
| Line Graph and Table Measure Name | Russell 3000<sup style="inset: 1.5px 0px 4px; box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 700; grid-area: auto; line-height: 0px; margin: 0px; overflow: visible; position: relative; text-align: center; text-align-last: auto; white-space-collapse: preserve-breaks;">®</sup> Index | ||||
| Average Annual Return, Percent | (1.65%) | 18.09% | 10.87% | 13.67% | |
| Russell 3000 Total Return Index | |||||
| Average Annual Return [Line Items] | |||||
| Line Graph and Table Measure Name | Russell 3000<sup style="inset: 1.5px 0px 4px; box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 700; grid-area: auto; line-height: 0px; margin: 0px; overflow: visible; position: relative; text-align: center; text-align-last: auto; white-space-collapse: preserve-breaks;">®</sup> Index | ||||
| Average Annual Return, Percent | (1.65%) | 18.09% | 10.87% | 13.67% | |
| Russell 2000 Growth Total Return | |||||
| Average Annual Return [Line Items] | |||||
| Line Graph and Table Measure Name | Russell 2000<sup style="inset: 1.5px 0px 4px; box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 700; grid-area: auto; line-height: 0px; margin: 0px; overflow: visible; position: relative; text-align: center; text-align-last: auto; white-space-collapse: preserve-breaks;">®</sup> Growth Index | ||||
| Average Annual Return, Percent | (1.63%) | 23.58% | 1.62% | 9.79% | |
| Russell 2000 Growth Total Return | |||||
| Average Annual Return [Line Items] | |||||
| Line Graph and Table Measure Name | Russell 2000<sup style="inset: 1.5px 0px 4px; box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 700; grid-area: auto; line-height: 0px; margin: 0px; overflow: visible; position: relative; text-align: center; text-align-last: auto; white-space-collapse: preserve-breaks;">®</sup> Growth Index | ||||
| Average Annual Return, Percent | (1.63%) | 23.58% | 1.62% | 9.79% | |
| Russell 2500 Growth Total Return | |||||
| Average Annual Return [Line Items] | |||||
| Line Graph and Table Measure Name | Russell 2500<sup style="inset: 1.5px 0px 4px; box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 700; grid-area: auto; line-height: 0px; margin: 0px; overflow: visible; position: relative; text-align: center; text-align-last: auto; white-space-collapse: preserve-breaks;">®</sup> Growth Index | ||||
| Average Annual Return, Percent | (3.20%) | 19.31% | 1.75% | 10.46% | |
| Russell 2500 Growth Total Return | |||||
| Average Annual Return [Line Items] | |||||
| Line Graph and Table Measure Name | Russell 2500<sup style="inset: 1.5px 0px 4px; box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 700; grid-area: auto; line-height: 0px; margin: 0px; overflow: visible; position: relative; text-align: center; text-align-last: auto; white-space-collapse: preserve-breaks;">®</sup> Growth Index | ||||
| Average Annual Return, Percent | (3.20%) | 19.31% | 1.75% | 10.46% | |
| Russell Microcap Growth Total Return | |||||
| Average Annual Return [Line Items] | |||||
| Line Graph and Table Measure Name | Russell Microcap<sup style="inset: 1.5px 0px 4px; box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 700; grid-area: auto; line-height: 0px; margin: 0px; overflow: visible; position: relative; text-align: center; text-align-last: auto; white-space-collapse: preserve-breaks;">®</sup> Growth Index | ||||
| Average Annual Return, Percent | (2.19%) | 41.84% | (1.21%) | 7.14% | |
| Russell Microcap Growth Total Return | |||||
| Average Annual Return [Line Items] | |||||
| Line Graph and Table Measure Name | Russell Microcap<sup style="inset: 1.5px 0px 4px; box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 700; grid-area: auto; line-height: 0px; margin: 0px; overflow: visible; position: relative; text-align: center; text-align-last: auto; white-space-collapse: preserve-breaks;">®</sup> Growth Index | ||||
| Average Annual Return, Percent | (2.19%) | 41.84% | (1.21%) | 7.14% |