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Filing Detail
Form 10-K/A - Annual report [Section 13 and 15(d), not S-K Item 405]: [Amend]
SEC Accession No. 0000897101-21-000335
Filing Date
2021-04-30
Accepted
2021-04-30 15:01:07
Documents
3
Period of Report
2020-12-31

Document Format Files

Seq Description Document Type Size
1 AMENDMENT NO. 1 TO FORM 10-K csi210629_10k-a.htm 10-K/A 699089
2 CERTIFICATION OF THE CHIEF EXECUTIVE OFFICER csi210629_ex31-1.htm EX-31.1 5088
3 CERTIFICATION OF CHIEF FINANCIAL OFFICER csi210629_ex31-2.htm EX-31.2 5122
  Complete submission text file 0000897101-21-000335.txt   710290
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-K/A | Act: 34 | File No.: 001-31588 | Film No.: 21876936
SIC: 3661 Telephone & Telegraph Apparatus