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Filing Detail
Form 10-Q - Quarterly report [Sections 13 or 15(d)]:
SEC Accession No. 0000897101-21-000381
Filing Date
2021-05-07
Accepted
2021-05-07 17:27:13
Documents
78
Period of Report
2021-03-31

Document Format Files

Seq Description Document Type Size
1 10-Q FOR THE QUARTERLY PERIOD ENDED MARCH 31, 2021 csi210666_10q.htm 10-Q 1235067
2 CERTIFICATION OF CHIEF EXECUTIVE OFFICER csi210666_ex31-1.htm EX-31.1 9534
3 CERTIFICATION OF CHIEF FINANCIAL OFFICER csi210666_ex31-2.htm EX-31.2 10577
4 CERTIFICATIONS PURSUANT SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002 csi210666_ex32.htm EX-32 8224
5 PRESS RELEASE DATED MAY 7, 2021 ANNOUNCING 2021 FIRST QUARTER RESULTS csi210666_ex99-1.htm EX-99.1 88871
12 GRAPHIC a210666001_v2.jpg GRAPHIC 5901
  Complete submission text file 0000897101-21-000381.txt   8570762

Data Files

Seq Description Document Type Size
6 XBRL INSTANCE FILE jcs-20210331.xml EX-101.INS 2459175
7 XBRL SCHEMA FILE jcs-20210331.xsd EX-101.SCH 42809
8 XBRL CALCULATION FILE jcs-20210331_cal.xml EX-101.CAL 76747
9 XBRL DEFINITION FILE jcs-20210331_def.xml EX-101.DEF 178430
10 XBRL LABEL FILE jcs-20210331_lab.xml EX-101.LAB 427315
11 XBRL PRESENTATION FILE jcs-20210331_pre.xml EX-101.PRE 371247
Mailing Address 10900 RED CIRCLE DRIVE MINNETONKA MN 55343
Business Address 10900 RED CIRCLE DRIVE MINNETONKA MN 55343 9529961674
COMMUNICATIONS SYSTEMS INC (Filer) CIK: 0000022701 (see all company filings)

IRS No.: 410957999 | State of Incorp.: MN | Fiscal Year End: 1231
Type: 10-Q | Act: 34 | File No.: 001-31588 | Film No.: 21904138
SIC: 3661 Telephone & Telegraph Apparatus