Equity (Details Narrative) - USD ($) $ in Thousands		1 Months Ended	9 Months Ended		12 Months Ended	13 Months Ended
	May 27, 2021	Dec. 31, 2020	Apr. 30, 2021	Apr. 30, 2020	Dec. 31, 2020	Apr. 30, 2021
Class of Stock [Line Items]
Remaining shares available for repurchase			5,800,000			5,800,000
Proceeds from exercise of stock options			$ 686	$ 276
Number of common stock options exercise			81,041	32,551
Net2phone, Inc. [Member]
Class of Stock [Line Items]
Number of restricted shares issued					50
Common stock outstanding percentage		5.00%
Grant of restricted equity description			The restricted shares will vest if: (a) for any fiscal quarter of net2phone 2.0 between November 1, 2020 and October 31, 2023, net2phone 2.0 records subscription revenue that is at least $18 million, and (b) as of October 31, 2023, the valuation of net2phone 2.0 is $100 million or more. The restricted shares will also vest in the event, prior to October 31, 2023, net2phone 2.0 or its assets are sold at an equity valuation and on a cash-free basis of $100 million or more, regardless of whether the revenue threshold was satisfied prior thereto. The restricted shares entitle each grantee to proceeds only on a sale, spin-off, initial public offering, or other monetization of net2phone 2.0 and have protection from dilution for the first $15 million invested in the net2phone 2.0 following the grant.
Aggregate estimated fair value on grant date recognized over the vesting period		$ 200			$ 200
Class B Common Stock [Member]
Class of Stock [Line Items]
Repurchase of shares			463,792	40,763
Aggregate purchase price of repurchase			$ 2,800	$ 200
Class B Common Stock [Member] | DSUs [Member]
Class of Stock [Line Items]
Number of common stock issued			283,838
Number of common stock vested			19,919
Number of common stock unvested						154,169
Class B Common Stock [Member] | Employees [Member]
Class of Stock [Line Items]
Repurchase of shares			109,381	37,348
Aggregate purchase price of repurchase			$ 1,300	$ 300
Common Class B [Member] | Subsequent Event [Member]
Class of Stock [Line Items]
Number of newly issued shares, shares	35,839
Number of newly issued shares	$ 1,000
Maximum [Member]
Class of Stock [Line Items]
Number of repurchase shares authorised			8,000,000.0			8,000,000.0