Business Acquisitions (Details 7)	Apr. 02, 2019 USD ($) $ / shares shares
DragonWave-X and Lextrum Purchase Price [Member]
Number of common stock paid \| shares	13,237,149
Per share value \| $ / shares	$ 4.40
Purchase price	$ 58,243,456
DragonWave [Member]
Purchase price	42,081,392
Lextrum [Member]
Purchase price	$ 16,162,064

Number of shares of equity interests issued or issuable to acquire entity.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 30
-Section 50
-Paragraph 1
-Subparagraph (b)(4)
-URI http://asc.fasb.org/extlink&oid=120321790&loc=d3e6927-128479

Name:	us-gaap_BusinessAcquisitionEquityInterestsIssuedOrIssuableNumberOfSharesIssued
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration