REVENUE - Contract Assets and Contract Liabilities (Details) - USD ($) $ in Thousands	9 Months Ended
Sep. 30, 2018	Jan. 01, 2018
REVENUE.
Contract asset (current)	$ 15,846	$ 13,984
Increase / (decrease) in contract asset (current)	1,862
Contract liability (current)	413	15
Increase / (decrease) in contract liability (current)	398
Contract liability (long-term)	458	824
Increase / (decrease) in contract liability (long-term)	(366)
Revenue recognized previously included in current contract liabilities	154
Unearned revenue associated with outstanding contracts	871	$ 839
Estimated revenue to be recognized in 2018	102
Estimated revenue to be recognized in 2019	367
Estimated revenue to be recognized after 2019	$ 402

The amount of increase (decrease) in current contract liabilities during the period.

No definition available.

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- Definition

The increase (decrease) in non-current contract liabilities.

+ References

No definition available.

+ Details

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- Definition

Amount of transaction price allocated to performance obligation that has not been recognized, estimated to be recognized after the second year.

+ References

No definition available.

+ Details

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- Definition

Amount of transaction price allocated to performance obligation that has not been recognized, estimated to be recognized in the following year.

+ References

No definition available.

+ Details

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- Definition

Amount of transaction price allocated to performance obligation that has not been recognized, estimated to be recognized in the remainder of the current year.

+ References

No definition available.

+ Details

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- Definition

Amount, after allowance for credit loss, of right to consideration in exchange for good or service transferred to customer when right is conditioned on something other than passage of time, classified as current.

+ References

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-Publisher FASB
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- Definition

Amount of decrease in right to consideration in exchange for good or service transferred to customer when right is conditioned on something other than passage of time from transfer to receivable due to right to consideration becoming unconditional.

+ References

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- Definition

Amount of obligation to transfer good or service to customer for which consideration has been received or is receivable, classified as current.

+ References

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- Definition

Amount of obligation to transfer good or service to customer for which consideration has been received or is receivable, classified as noncurrent.

+ References

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- Definition

Amount of revenue recognized that was previously included in balance of obligation to transfer good or service to customer for which consideration from customer has been received or is due.

+ References

+ Details

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- References

No definition available.

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- Definition

Amount of transaction price allocated to performance obligation that has not been recognized as revenue.

+ References

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