Business Acquisitions (Details) - Schedule of pro forma combined results of operations (Parentheticals) - $ / shares	12 Months Ended
Dec. 31, 2021	Dec. 31, 2020
Schedule Of Pro Forma Combined Results Of Operations Abstract
Diluted loss per common share	$ (1.68)	$ (0.75)

The amount of net income (loss) for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period.

No definition available.

Name:	coms_DilutedLossPerCommonShare
Namespace Prefix:	coms_
Data Type:	dtr:perShareItemType
Balance Type:	na
Period Type:	duration