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REVENUE RECOGNITION (Tables) | 12 Months Ended
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Dec. 31, 2019
REVENUE RECOGNITION |
Summary of contracts asset and liabilities | Contract assets and liabilities consisted of the following (amounts in thousands): ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | December 31, 2019 | ​ | December 31, 2018 | ​ | ​ | $ Change | ​ | % Change
Contract asset – current | $ | 2,413 | ​ | $ | 1,900 | ​ | $ | 513 | ​ | 27 | %
Contract asset – noncurrent | ​ | 905 | ​ | ​ | 802 | ​ | ​ | 103 | ​ | 13 | %
Contract liability- current | ​ | (15,044) | ​ | ​ | (13,787) | ​ | ​ | (1,257) | ​ | (9) | %
Contract liability- noncurrent | ​ | (5,450) | ​ | ​ | — | ​ | ​ | (5,450) | ​ | 100 | %
Net contract liability | $ | (17,176) | ​ | $ | (11,085) | ​ | $ | (6,091) | ​ | (55) | %

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- Definition Tabular disclosure of contract balances and changes in contract balances. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=118956577&loc=SL49130551-203045 + Details
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