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LONG-TERM OBLIGATIONS (Details) - USD ($) $ in Thousands | 6 Months Ended |  |  |
--- | --- | --- | --- | ---
Jun. 30, 2022 | Dec. 31, 2021 | Jun. 30, 2021 | Dec. 31, 2020
Line of Credit Facility [Line Items] |  |  |  |
Cash and temporary investments | $ 31,129 | $ 54,332 | $ 53,934 | $ 57,521
First Tennessee Bank National Association | Credit facility |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |
Revolving credit facility | $ 50,000 |  |  |
Debt instrument description of non-default rate of interest | LIBOR Rate plus 1.00% or 1.25% per annum, depending on the leverage ratio |  |  |
Amount drew on existing credit facility | $ 40,000 |  |  |
Line of credit outstanding borrowings | $ 40,000 | $ 0 |  |
First Tennessee Bank National Association | Credit facility | Minimum |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |
Non-usage fee for current loan agreement in annual amount percentage | 0.15% |  |  |
First Tennessee Bank National Association | Credit facility | Minimum | London Interbank Offered Rate (LIBOR) [Member] |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |
Variable interest rate in addition to reference rate | 1.00% |  |  |
First Tennessee Bank National Association | Credit facility | Maximum |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |
Non-usage fee for current loan agreement in annual amount percentage | 0.35% |  |  |
First Tennessee Bank National Association | Credit facility | Maximum | London Interbank Offered Rate (LIBOR) [Member] |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |
Variable interest rate in addition to reference rate | 1.25% |  |  |

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- Definition Amount of cash and cash equivalents, and cash and cash equivalents restricted to withdrawal or usage. Excludes amount for disposal group and discontinued operations. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. Cash equivalents include, but are not limited to, short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 24 -URI https://asc.fasb.org/extlink&oid=126954810&loc=d3e3521-108585 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 4 -URI https://asc.fasb.org/extlink&oid=126954810&loc=d3e3044-108585 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 8 -URI https://asc.fasb.org/extlink&oid=126999549&loc=SL98516268-108586 + Details
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