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LONG-TERM OBLIGATIONS (Detail Textuals) - First Tennessee Bank National Association - Revolving Credit Facility - USD ($) $ in Thousands | 12 Months Ended |  |  |  |  |
--- | --- | --- | --- | --- | --- | ---
Dec. 31, 2016 | Dec. 31, 2015 | Mar. 14, 2017 | Jun. 22, 2016 | Jun. 11, 2015 | Dec. 21, 2011 | Apr. 06, 2010
Line of Credit Facility [Line Items] |  |  |  |  |  |  |
Revolving credit facility |  |  |  | $ 50,000 | $ 30,000 | $ 25,000 | $ 20,000
Description of reference rate basis | LIBOR Market Index Rate |  |  |  |  |  |
Variable interest rate in addition to reference rate | 1.50% |  |  |  |  |  |
Interest expense on credit facility | $ 341 | $ 0 |  |  |  |  |
Outstanding borrowings credit facility | $ 5,000 | $ 0 |  |  |  |  |
Interest rate | 2.27% |  |  |  |  |  |
Subsequent Event |  |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |  |
Outstanding borrowings credit facility |  |  | $ 15,000 |  |  |  |
Minimum |  |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |  |
Non-usage fee for current loan agreement in annual amount percentage | 0.15% |  |  |  |  |  |
Maximum |  |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |  |
Non-usage fee for current loan agreement in annual amount percentage | 0.35% |  |  |  |  |  |

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- Definition The reference rate for the variable rate of the debt instrument, such as LIBOR or the US Treasury rate and the maturity of the reference rate used, such as three months or six months LIBOR. + References No definition available. + Details
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- Definition Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22(a)(1)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=64930785&loc=d3e28551-108399 + Details
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