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CASH FLOW INFORMATION (Tables) | 3 Months Ended
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Mar. 31, 2021
CASH FLOW INFORMATION |
Schedule of cash flow information related to operating leases | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | For the Three Months Ended | ​
​ | ​ | March 31, | ​
​ | ​ | 2021 | ​ | 2020 |
Cash paid for amounts included in the measurement of lease liabilities: | ​ | ​ | ​ | ​ | ​ | ​ | ​
Operating cash flows from operating lease | ​ | $ | 557 | ​ | $ | 557 | ​

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