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SUBSEQUENT EVENTS (Details) - USD ($) $ / shares in Units, $ in Thousands		3 Months Ended
	Mar. 02, 2020	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017
Subsequent Event [Line Items]
Dividends payable, payment date		Dec. 16, 2019	Sep. 16, 2019	Jun. 17, 2019	Mar. 25, 2019	Dec. 10, 2018	Sep. 17, 2018	Jun. 18, 2018	Mar. 26, 2018	Dec. 11, 2017	Sep. 18, 2017	Jun. 20, 2017	Apr. 03, 2017
Dividends payable, record date		Dec. 09, 2019	Sep. 09, 2019	Jun. 10, 2019	Mar. 18, 2019	Dec. 03, 2018	Sep. 10, 2018	Jun. 11, 2018	Mar. 19, 2018	Dec. 04, 2017	Sep. 11, 2017	Jun. 13, 2017	Mar. 27, 2017
Revolving Credit Facility | First Tennessee Bank National Association
Subsequent Event [Line Items]
Outstanding borrowings credit facility		$ 4,998				$ 15,000
Subsequent event
Subsequent Event [Line Items]
Dividends payable, declared date	Mar. 02, 2020
Dividends payable, amount per share	$ 0.18
Dividends payable, payment date	Mar. 23, 2020
Dividends payable, record date	Mar. 16, 2020

X

- Definition

Date the declared dividend will be paid, in CCYY-MM-DD format.

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-Publisher FASB
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Fair value of the amount outstanding under the credit facility.

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