|
Aug 31, 2025
|
Oberweis Asset Management Inc
|
0
|
0.00%
|
|
|
|
Jul 31, 2025
|
Oberweis Asset Management Inc
|
0
|
0.00%
|
|
|
|
Jun 30, 2025
|
Oberweis Asset Management Inc
|
0
|
0.00%
|
|
|
|
May 31, 2025
|
Oberweis Asset Management Inc
|
0
|
0.00%
|
|
|
|
Apr 30, 2025
|
Oberweis Asset Management Inc
|
135,342
|
0.74%
|
|
|
|
Mar 31, 2025
|
Oberweis Asset Management Inc
|
0
|
0.00%
|
|
Mar 31, 2025
|
Oberweis Asset Management Inc
|
135,342
|
0.73%
|
|
|
|
Feb 28, 2025
|
Oberweis Asset Management Inc
|
135,342
|
0.73%
|
|
|
|
Jan 31, 2025
|
Oberweis Asset Management Inc
|
230,000
|
1.23%
|
|
|
|
Dec 31, 2024
|
Oberweis Asset Management Inc
|
67,671
|
0.37%
|
|
Dec 31, 2024
|
Oberweis Asset Management Inc
|
230,000
|
1.23%
|
|
|
|
Nov 30, 2024
|
Oberweis Asset Management Inc
|
230,000
|
1.23%
|
|
|
|
Oct 31, 2024
|
Oberweis Asset Management Inc
|
223,800
|
1.19%
|
|
|
|
Sep 30, 2024
|
Oberweis Asset Management Inc
|
115,000
|
0.61%
|
|
Sep 30, 2024
|
Oberweis Asset Management Inc
|
223,800
|
1.19%
|
|
|
|
Aug 31, 2024
|
Oberweis Asset Management Inc
|
223,800
|
1.19%
|
|
|
|
Jul 31, 2024
|
Oberweis Asset Management Inc
|
208,800
|
1.11%
|
|
|
|
Jun 30, 2024
|
Oberweis Asset Management Inc
|
111,900
|
0.60%
|
|
Jun 30, 2024
|
Oberweis Asset Management Inc
|
193,800
|
1.03%
|
|
|
|
May 31, 2024
|
Oberweis Asset Management Inc
|
193,800
|
1.03%
|
|
|
|
Apr 30, 2024
|
Oberweis Asset Management Inc
|
132,200
|
0.71%
|
|
|
|
Mar 31, 2024
|
Oberweis Asset Management Inc
|
96,900
|
0.52%
|
|
Mar 31, 2024
|
Oberweis Asset Management Inc
|
132,200
|
0.71%
|
|
|
|
Feb 29, 2024
|
Oberweis Asset Management Inc
|
132,200
|
0.71%
|
|
|
|
Jan 31, 2024
|
Oberweis Asset Management Inc
|
191,400
|
1.02%
|
|
|
|
Dec 31, 2023
|
Oberweis Asset Management Inc
|
191,400
|
1.02%
|
|
|
|
Nov 30, 2023
|
Oberweis Asset Management Inc
|
175,900
|
0.93%
|
|
|
|
Oct 31, 2023
|
Oberweis Asset Management Inc
|
175,900
|
0.93%
|
|
|
|
Sep 30, 2023
|
Oberweis Asset Management Inc
|
95,700
|
0.51%
|
|
Sep 30, 2023
|
Oberweis Asset Management Inc
|
160,400
|
0.85%
|
|
|
|
Aug 31, 2023
|
Oberweis Asset Management Inc
|
134,900
|
0.72%
|
|
|
|
Jul 31, 2023
|
Oberweis Asset Management Inc
|
126,800
|
0.67%
|
|
|
|
Jun 30, 2023
|
Oberweis Asset Management Inc
|
80,200
|
0.43%
|
|
Jun 30, 2023
|
Oberweis Asset Management Inc
|
126,800
|
0.67%
|
|
|
|
May 31, 2023
|
Oberweis Asset Management Inc
|
86,800
|
0.46%
|
|
|
|
Mar 31, 2023
|
Oberweis Asset Management Inc
|
63,400
|
0.34%
|
|
|
|
Dec 31, 2022
|
Oberweis Asset Management Inc
|
43,400
|
0.23%
|