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Revenue Recognition - Schedule of Unamortized Installation Cost and Sales Commissions (Details) $ in Thousands	6 Months Ended
	Jun. 30, 2020 USD ($)
Balance at January 1, 2020	$ 274
Incremental costs deferred	128
Deferred costs recognized	(250)
Balance at June 30, 2020	152
Installation Cost [Member]
Balance at January 1, 2020	187
Incremental costs deferred	74
Deferred costs recognized	(157)
Balance at June 30, 2020	104
Sales Commissions [Member]
Balance at January 1, 2020	87
Incremental costs deferred	54
Deferred costs recognized	(93)
Balance at June 30, 2020	$ 48

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+ References

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- Definition

Amount of deferred cost, excluding capitalized cost related to contract with customer; classified as noncurrent.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(17))
-URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(10))
-URI http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03(a)(10))
-URI http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910

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