v3.8.0.1

Accounts receivables, net and other receivables (Tables)

12 Months Ended

Dec. 31, 2017

Accounts receivables, net and other receivables

Schedule of accounts receivable, net of allowances for doubtful accounts and other receivables

		December 31,
		2017			2016
Trade receivables, net of allowances		$	25,079		$	39,404
Unbilled access fees			274			21
Unbilled platform service arrangements			795			3,553
​	​	​	​	​	​	​	​
Accounts receivable, net		$	26,148		$	42,978
​	​	​	​	​	​	​	​
​	​	​	​	​	​	​	​
Unbilled access fees		$	817		$	867
Unbilled platform service arrangements			3			694
​	​	​	​	​	​	​	​
Non-current other receivables		$	820		$	1,561
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​	​	​	​	​	​	​	​

Schedule of allowance for doubtful accounts

		Allowance for Doubtful Accounts
Balance, December 31, 2014		$	394
Additions charged to operations			304
Deductions from reserves, net			(93	)
​	​	​	​	​
Balance, December 31, 2015			605
Additions charged to operations			116
Deductions from reserves, net			(279	)
​	​	​	​	​
Balance, December 31, 2016			442
Additions charged to operations			773
Deductions from reserves, net			(352	)
​	​	​	​	​
Balance, December 31, 2017		$	863
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​	​	​	​	​

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- Definition

Tabular disclosure of the various types of trade accounts and notes receivable and for each the gross carrying value, allowance, and net carrying value as of the balance sheet date. Presentation is categorized by current, noncurrent and unclassified receivables.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.3,4)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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- Definition

Tabular disclosure of credit losses for current financing receivables (such as trade and accounts receivable), including a rollforward of the balance. An alternative caption includes allowance for doubtful accounts.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 11B
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=84173941&loc=SL6953423-111524

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