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LONG-TERM OBLIGATIONS (Detail Textuals) - First Tennessee Bank National Association - Revolving Credit Facility - USD ($) $ in Millions | 12 Months Ended |  |  |  |
--- | --- | --- | --- | --- | ---
Dec. 31, 2015 | Feb. 29, 2016 | Jun. 11, 2015 | Dec. 21, 2011 | Apr. 06, 2010
Line of Credit Facility [Line Items] |  |  |  |  |
Revolving credit facility |  |  | $ 30.0 | $ 25.0 | $ 20.0
Description of reference rate basis | LIBOR Market Index Rate plus |  |  |  |
Variable interest rate in addition to reference rate | 1.50% |  |  |  |
Interest rate | 1.93% |  |  |  |
Subsequent Event |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |
Outstanding borrowings credit facility |  | $ 10.0 |  |  |
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 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=6451184&loc=d3e28551-108399 + Details
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- Definition Amount of current borrowing capacity under the credit facility considering any current restrictions on the amount that could be borrowed (for example, borrowings may be limited by the amount of current assets), but without considering any amounts currently outstanding under the facility. + 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 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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