|
Mar 31, 2025
|
Oberweis Asset Management Inc
|
305,600
|
0.56%
|
|
|
|
Feb 28, 2025
|
Oberweis Asset Management Inc
|
305,600
|
0.56%
|
|
|
|
Jan 31, 2025
|
Oberweis Asset Management Inc
|
305,600
|
0.56%
|
|
|
|
Dec 31, 2024
|
Oberweis Asset Management Inc
|
152,800
|
0.28%
|
|
Dec 31, 2024
|
Oberweis Asset Management Inc
|
305,600
|
0.56%
|
|
|
|
Nov 30, 2024
|
Oberweis Asset Management Inc
|
305,600
|
0.56%
|
|
|
|
Oct 31, 2024
|
Oberweis Asset Management Inc
|
269,000
|
0.50%
|
|
|
|
Sep 30, 2024
|
Oberweis Asset Management Inc
|
152,800
|
0.28%
|
|
Sep 30, 2024
|
Oberweis Asset Management Inc
|
269,000
|
0.49%
|
|
|
|
Aug 31, 2024
|
Oberweis Asset Management Inc
|
269,000
|
0.49%
|
|
|
|
Jul 31, 2024
|
Oberweis Asset Management Inc
|
226,600
|
0.41%
|
|
|
|
Jun 30, 2024
|
Oberweis Asset Management Inc
|
134,500
|
0.25%
|
|
Jun 30, 2024
|
Oberweis Asset Management Inc
|
184,200
|
0.33%
|
|
|
|
May 31, 2024
|
Oberweis Asset Management Inc
|
184,200
|
0.33%
|
|
|
|
Apr 30, 2024
|
Oberweis Asset Management Inc
|
0
|
0.00%
|
|
|
|
Mar 31, 2024
|
Oberweis Asset Management Inc
|
92,100
|
0.17%
|
|
Mar 31, 2024
|
Oberweis Asset Management Inc
|
0
|
0.00%
|
|
|
|
Feb 29, 2024
|
Oberweis Asset Management Inc
|
0
|
0.00%
|
|
|
|
Jan 31, 2024
|
Oberweis Asset Management Inc
|
0
|
0.00%
|
|
|
|
Dec 31, 2023
|
Oberweis Asset Management Inc
|
0
|
0.00%
|
|
|
|
Nov 30, 2023
|
Oberweis Asset Management Inc
|
57,600
|
0.10%
|
|
|
|
Oct 31, 2023
|
Oberweis Asset Management Inc
|
57,600
|
0.10%
|
|
|
|
Sep 30, 2023
|
Oberweis Asset Management Inc
|
0
|
0.00%
|
|
Sep 30, 2023
|
Oberweis Asset Management Inc
|
98,400
|
0.18%
|
|
|
|
Aug 31, 2023
|
Oberweis Asset Management Inc
|
96,300
|
0.17%
|
|
|
|
Jul 31, 2023
|
Oberweis Asset Management Inc
|
94,200
|
0.17%
|
|
|
|
Jun 30, 2023
|
Oberweis Asset Management Inc
|
62,405
|
0.11%
|
|
Jun 30, 2023
|
Oberweis Asset Management Inc
|
94,200
|
0.17%
|
|
|
|
May 31, 2023
|
Oberweis Asset Management Inc
|
65,200
|
0.12%
|
|
|
|
Mar 31, 2023
|
Oberweis Asset Management Inc
|
60,351
|
0.11%
|
|
|
|
Dec 31, 2022
|
Oberweis Asset Management Inc
|
44,747
|
0.08%
|