LONG-TERM DEBT - (Schedule of Debt) (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Debt Instrument [Line Items]
Total debt maturities	$ 44,404	$ 49,251
Senior Unsecured Floating Rate Notes, Due December 31, 2027 [Member]
Debt Instrument [Line Items]
Deferred financing costs	348	377
Senior Unsecured Fixed Rate Notes, Due July 1, 2022 [Member]
Debt Instrument [Line Items]
Deferred financing costs	248	302
Other Consolidated Debt from VIE, Due March 17, 2021 [Member]
Debt Instrument [Line Items]
Deferred financing costs	0	70
Unsecured Debt [Member] | Senior Unsecured Floating Rate Notes, Due December 31, 2027 [Member]
Debt Instrument [Line Items]
Total debt maturities	24,652	24,623
Unsecured Debt [Member] | Senior Unsecured Fixed Rate Notes, Due July 1, 2022 [Member]
Debt Instrument [Line Items]
Total debt maturities	19,752	19,698
Other debt [Member] | Other Consolidated Debt from VIE, Due March 17, 2021 [Member]
Debt Instrument [Line Items]
Total debt maturities	$ 0	$ 4,930