REVENUES FROM CONTRACTS WITH CUSTOMERS (Tables)

12 Months Ended

Dec. 31, 2021

Capitalized Contract Cost [Line Items]

Schedule of disaggregated revenue by category

	Year ended December 31, 2021
	Enterprise, Education and Technology					Media and Telecom
	Amount		Percentage of revenue			Amount		Percentage of revenue
Subscription	$	108,842		91.5	%	$	36,124		78.4	%
Professional services		10,090		8.5	%		9,960		21.6	%
	$	118,932		100	%	$	46,084		100	%

	Year ended December 31, 2020
	Enterprise, Education and Technology					Media and Telecom
	Amount		Percentage of revenue			Amount		Percentage of revenue
Subscription	$	74,473		92.6	%	$	29,591		74.0	%
Professional services		5,976		7.4	%		10,400		26.0	%
	$	80,449		100	%	$	39,991		100	%

	Year ended December 31, 2019
	Enterprise, Education and Technology					Media and Telecom
	Amount		Percentage of revenue			Amount		Percentage of revenue
Subscription	$	61,376		94.6	%	$	23,349		71.8	%
Professional services		3,463		5.4	%		9,161		28.2	%
	$	64,839		100	%	$	32,510		100	%

Costs to Obtain a Contract

Capitalized Contract Cost [Line Items]

Schedule of costs to obtain and fulfill a contract

	Year ended December 31,
	2021			2020			2019
Beginning balance	$	17,683		$	9,015		$	5,467
Additions to deferred contract acquisition costs during the period		15,594			11,997			5,926
Amortization of deferred contract acquisition costs		(7,003	)		(3,329	)		(2,378	)
Ending balance	$	26,274		$	17,683		$	9,015
Deferred contract acquisition costs, current	$	7,671		$	4,788		$	2,603
Deferred contract acquisition costs, noncurrent		18,603			12,895			6,412
Total deferred costs to obtain a contract	$	26,274		$	17,683		$	9,015

Costs to Fulfill a Contract

Capitalized Contract Cost [Line Items]

Schedule of costs to obtain and fulfill a contract

	Year ended December 31,
	2021			2020			2019
Beginning balance	$	4,041		$	3,993		$	4,241
Additions to deferred costs to fulfill a contract during the period		2,457			950			664
Amortization of deferred costs to fulfill a contract		(1,072	)		(902	)		(912	)
Ending balance	$	5,426		$	4,041		$	3,993
Deferred fulfillment costs, current	$	1,408		$	1,060		$	901
Deferred fulfillment costs, noncurrent		4,018			2,981			3,092
Total deferred costs to fulfill a contract	$	5,426		$	4,041		$	3,993