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Note 5 - LEASES (Tables) | 6 Months Ended
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Jun. 30, 2022
Notes Tables |
Schedule of Lease Expenses | Lease expense was comprised of the following (in thousands):
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Three Months Ended June 30, | ​ | Six Months Ended June 30,
​ |  | 2022 |  | 2021 |  | 2022 |  | 2021
Operating lease expense (1) | ​ | $ | 353 | ​ | $ | 484 | ​ | $ | 698 | ​ | $ | 969
Short-term lease and variable lease expense (2) | ​ |  | 274 | ​ |  | 233 | ​ |  | 557 | ​ |  | 407
Total lease expense | ​ | $ | 627 | ​ | $ | 717 | ​ | $ | 1,255 | ​ | $ | 1,376
| (1) | Net of gain recognized upon lease termination of $0.1 million in the six months ended June 30, 2022.
| (2) | Leases with an initial term of 12 months or less are not recorded on the Condensed Consolidated Balance Sheets, and the Company recognizes lease expense for these leases on a straight-line basis over the lease term. Variable lease expense for the periods presented primarily included common area maintenance charges.
Supplemental balance sheets information related to operating leases was as follows: ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | June 30, | ​ | December 31, |
​ |  | 2022 |  | 2021 |
Weighted average remaining lease term under operating ROU leases (in years) | ​ | ​ | 5.5 | ​ | ​ | 5.7 | ​
Weighted average discount rate for operating lease liabilities |  | ​ | 4.96 | % | ​ | 5.25 | %
Schedule of Operating Lease Liabilities and Maturities | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | June 30, | ​ | December 31, |
​ |  | 2022 |  | 2021 |
Weighted average remaining lease term under operating ROU leases (in years) | ​ | ​ | 5.5 | ​ | ​ | 5.7 | ​
Weighted average discount rate for operating lease liabilities |  | ​ | 4.96 | % | ​ | 5.25 | %

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- Definition Tabular disclosure of lessee's lease cost. Includes, but is not limited to, interest expense for finance lease, amortization of right-of-use asset for finance lease, operating lease cost, short-term lease cost, variable lease cost and sublease income. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=123408670&loc=SL77918686-209980 + Details
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- Definition Tabular disclosure of undiscounted cash flows of lessee's operating lease liability. Includes, but is not limited to, reconciliation of undiscounted cash flows to operating lease liability recognized in statement of financial position. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=123408670&loc=SL77918701-209980 + Details
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