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SALES OF BRANCH, SUBSIDIARY AND BUSINESS UNITS - The Palisades Group Sale Additional Information (Details) - USD ($)		12 Months Ended
	May 05, 2016	Dec. 31, 2017	Dec. 31, 2016
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Stated interest rate	10.00%
Note receivable	$ 5,000,000
Disposal Group, Disposed of by Sale, Not Discontinued Operations | The Palisades Group
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Gain on sale of The Palisades Group	3,700,000		$ 3,694,000
The Note	$ 2,400,000		$ 2,370,000
Gain on repayment of notes receivable		$ 2,800,000

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