Shareholder Report, Average Annual Return (Details)

12 Months Ended

17 Months Ended

55 Months Ended

60 Months Ended

85 Months Ended

103 Months Ended

109 Months Ended

120 Months Ended

Mar. 31, 2026

Mar. 31, 2026

Mar. 31, 2026

Mar. 31, 2026

Mar. 31, 2026

Mar. 31, 2026

Mar. 31, 2026

Mar. 31, 2026

Pear Tree Polaris Small Cap Fund (Ordinary Shares)

Average Annual Return [Line Items]

Average Annual Return, Percent

14.51%

6.35%

8.15%

Pear Tree Polaris Small Cap Fund (Institutional Shares)

Average Annual Return [Line Items]

Average Annual Return, Percent

14.92%

6.74%

8.54%

Pear Tree Polaris Small Cap Fund (R6 Shares)

Average Annual Return [Line Items]

Average Annual Return, Percent

15.45%

8.51%

Pear Tree Quality Fund (Ordinary Shares)

Average Annual Return [Line Items]

Average Annual Return, Percent

9.01%

10.46%

13.74%

Pear Tree Quality Fund (Institutional Shares)

Average Annual Return [Line Items]

Average Annual Return, Percent

9.41%

10.89%

14.16%

Pear Tree Quality Fund (R6 Shares)

Average Annual Return [Line Items]

Average Annual Return, Percent

9.68%

6.24%

Pear Tree Essex Environmental Opportunities Fund (Ordinary Shares)

Average Annual Return [Line Items]

Average Annual Return, Percent

^[1]

34.63%

(1.26%)

6.77%

Pear Tree Essex Environmental Opportunities Fund (Institutional Shares)

Average Annual Return [Line Items]

Average Annual Return, Percent

^[2]

34.83%

(1.00%)

7.04%

Pear Tree Essex Environmental Opportunities Fund (R6 Shares)

Average Annual Return [Line Items]

Average Annual Return, Percent

35.46%

(3.06%)

Pear Tree Polaris Foreign Value Fund (Ordinary Shares)

Average Annual Return [Line Items]

Average Annual Return, Percent

32.38%

6.56%

7.56%

Pear Tree Polaris Foreign Value Fund (Institutional Shares)

Average Annual Return [Line Items]

Average Annual Return, Percent

32.87%

6.95%

7.94%

Pear Tree Polaris Foreign Value Fund (R6 Shares)

Average Annual Return [Line Items]

Average Annual Return, Percent

33.00%

7.05%

7.66%

Pear Tree Polaris Foreign Value Small Cap Fund (Ordinary Shares)

Average Annual Return [Line Items]

Average Annual Return, Percent

16.37%

4.25%

6.99%

Pear Tree Polaris Foreign Value Small Cap Fund (Institutional Shares)

Average Annual Return [Line Items]

Average Annual Return, Percent

16.82%

4.65%

7.39%

Pear Tree Polaris Foreign Value Small Cap Fund (R6 Shares)

Average Annual Return [Line Items]

Average Annual Return, Percent

17.00%

4.72%

7.12%

Pear Tree Polaris International Opportunities Fund (Ordinary Shares)

Average Annual Return [Line Items]

Average Annual Return, Percent

11.31%

1.84%

6.25%

Pear Tree Polaris International Opportunities Fund (Institutional Shares)

Average Annual Return [Line Items]

Average Annual Return, Percent

11.76%

2.33%

6.72%

Pear Tree Polaris International Opportunities Fund (R6 Shares)

Average Annual Return [Line Items]

Average Annual Return, Percent

11.90%

2.34%

6.75%

S&P 500

Average Annual Return [Line Items]

Average Annual Return, Percent

17.80%

11.14%

12.06%

14.16%

Russell 2000

Average Annual Return [Line Items]

Average Annual Return, Percent

25.73%

10.52%

3.77%

9.88%

MSCI EAFE

Average Annual Return [Line Items]

Average Annual Return, Percent

21.88%

8.45%

8.92%

8.91%

MSCI ACWI ex USA Small Cap

Average Annual Return [Line Items]

Average Annual Return, Percent

28.41%

6.16%

8.34%

8.47%

MSCI ACWI ex USA

Average Annual Return [Line Items]

Average Annual Return, Percent

25.58%

7.56%

9.22%

8.72%

8.91%

MSCI World

Average Annual Return [Line Items]

Average Annual Return, Percent

19.39%

^[1]

8.88%

10.77%

^[1]

11.73%

^[1]

[1]	Performance for periods prior to September 1, 2021 represent the performance of Essex Environmental Opportunities Fund, the predecessor of the Fund.
[2]	Performance for periods prior to September 1, 2021 represent the performance of Essex Environmental Opportunities Fund, the predecessor of the Fund.