|
Mar 31, 2025
|
Oberweis Asset Management Inc
|
1,414,600
|
1.81%
|
|
|
|
Feb 28, 2025
|
Oberweis Asset Management Inc
|
1,414,600
|
1.81%
|
|
|
|
Jan 31, 2025
|
Oberweis Asset Management Inc
|
1,356,800
|
1.75%
|
|
|
|
Dec 31, 2024
|
Oberweis Asset Management Inc
|
748,720
|
0.96%
|
|
Dec 31, 2024
|
Oberweis Asset Management Inc
|
1,356,800
|
1.75%
|
|
|
|
Nov 30, 2024
|
Oberweis Asset Management Inc
|
1,356,800
|
1.75%
|
|
|
|
Oct 31, 2024
|
Oberweis Asset Management Inc
|
1,218,400
|
1.57%
|
|
|
|
Sep 30, 2024
|
Oberweis Asset Management Inc
|
715,920
|
0.92%
|
|
Sep 30, 2024
|
Oberweis Asset Management Inc
|
1,218,400
|
1.59%
|
|
|
|
Aug 31, 2024
|
Oberweis Asset Management Inc
|
1,218,400
|
1.59%
|
|
|
|
Jul 31, 2024
|
Oberweis Asset Management Inc
|
1,235,400
|
1.61%
|
|
|
|
Jun 30, 2024
|
Oberweis Asset Management Inc
|
654,100
|
0.84%
|
|
Jun 30, 2024
|
Oberweis Asset Management Inc
|
1,252,400
|
1.64%
|
|
|
|
May 31, 2024
|
Oberweis Asset Management Inc
|
1,252,400
|
1.64%
|
|
|
|
Apr 30, 2024
|
Oberweis Asset Management Inc
|
1,224,200
|
1.60%
|
|
|
|
Mar 31, 2024
|
Oberweis Asset Management Inc
|
671,700
|
0.88%
|
|
Mar 31, 2024
|
Oberweis Asset Management Inc
|
1,224,200
|
1.60%
|
|
|
|
Feb 29, 2024
|
Oberweis Asset Management Inc
|
1,224,200
|
1.63%
|
|
|
|
Jan 31, 2024
|
Oberweis Asset Management Inc
|
1,102,400
|
1.51%
|
|
|
|
Dec 31, 2023
|
Oberweis Asset Management Inc
|
1,102,400
|
1.51%
|
|
|
|
Nov 30, 2023
|
Oberweis Asset Management Inc
|
985,500
|
1.35%
|
|
|
|
Oct 31, 2023
|
Oberweis Asset Management Inc
|
985,500
|
1.35%
|
|
|
|
Sep 30, 2023
|
Oberweis Asset Management Inc
|
597,540
|
0.78%
|
|
Sep 30, 2023
|
Oberweis Asset Management Inc
|
888,600
|
1.22%
|
|
|
|
Aug 31, 2023
|
Oberweis Asset Management Inc
|
545,500
|
0.75%
|
|
|
|
Jul 31, 2023
|
Oberweis Asset Management Inc
|
361,000
|
0.50%
|
|
|
|
Jun 30, 2023
|
Oberweis Asset Management Inc
|
482,310
|
0.66%
|
|
Jun 30, 2023
|
Oberweis Asset Management Inc
|
361,000
|
0.50%
|
|
|
|
May 31, 2023
|
Oberweis Asset Management Inc
|
184,800
|
0.26%
|
|
|
|
Mar 31, 2023
|
Oberweis Asset Management Inc
|
212,180
|
0.29%
|
|
|
|
Dec 31, 2022
|
Oberweis Asset Management Inc
|
92,400
|
0.13%
|