|
Mar 31, 2025
|
Oberweis Asset Management Inc
|
823,600
|
0.99%
|
|
|
|
Feb 28, 2025
|
Oberweis Asset Management Inc
|
823,600
|
0.99%
|
|
|
|
Jan 31, 2025
|
Oberweis Asset Management Inc
|
551,200
|
0.66%
|
|
|
|
Dec 31, 2024
|
Oberweis Asset Management Inc
|
389,300
|
0.47%
|
|
Dec 31, 2024
|
Oberweis Asset Management Inc
|
551,200
|
0.66%
|
|
|
|
Nov 30, 2024
|
Oberweis Asset Management Inc
|
551,200
|
0.66%
|
|
|
|
Oct 31, 2024
|
Oberweis Asset Management Inc
|
551,200
|
0.66%
|
|
|
|
Sep 30, 2024
|
Oberweis Asset Management Inc
|
275,600
|
0.33%
|
|
Sep 30, 2024
|
Oberweis Asset Management Inc
|
551,200
|
0.76%
|
|
|
|
Aug 31, 2024
|
Oberweis Asset Management Inc
|
551,200
|
0.76%
|
|
|
|
Jul 31, 2024
|
Oberweis Asset Management Inc
|
298,100
|
0.41%
|
|
|
|
Jun 30, 2024
|
Oberweis Asset Management Inc
|
275,600
|
0.33%
|
|
Jun 30, 2024
|
Oberweis Asset Management Inc
|
45,000
|
0.06%
|
|
|
|
May 31, 2024
|
Oberweis Asset Management Inc
|
45,000
|
0.06%
|
|
|
|
Apr 30, 2024
|
Oberweis Asset Management Inc
|
45,000
|
0.06%
|
|
|
|
Mar 31, 2024
|
Oberweis Asset Management Inc
|
22,500
|
0.03%
|
|
Mar 31, 2024
|
Oberweis Asset Management Inc
|
45,000
|
0.07%
|
|
|
|
Feb 29, 2024
|
Oberweis Asset Management Inc
|
22,500
|
0.03%
|
|
|
|
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
|
0
|
0.00%
|
|
|
|
Oct 31, 2023
|
Oberweis Asset Management Inc
|
0
|
0.00%
|
|
|
|
Sep 30, 2023
|
Oberweis Asset Management Inc
|
0
|
0.00%
|
|
|
|
Aug 31, 2023
|
Oberweis Asset Management Inc
|
0
|
0.00%
|
|
|
|
Jul 31, 2023
|
Oberweis Asset Management Inc
|
0
|
0.00%
|
|
|
|
Jun 30, 2023
|
Oberweis Asset Management Inc
|
0
|
0.00%
|
|
|
|
May 31, 2023
|
Oberweis Asset Management Inc
|
23,200
|
0.04%
|
|
|
|
Mar 31, 2023
|
Oberweis Asset Management Inc
|
0
|
0.00%
|
|
|
|
Dec 31, 2022
|
Oberweis Asset Management Inc
|
11,600
|
0.02%
|