Annual report pursuant to Section 13 and 15(d)

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES, Adoption of New Accounting Standards (Details)

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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES, Adoption of New Accounting Standards (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2017
Dec. 31, 2019
Dec. 31, 2018
ASU 2018-02 [Member] | Accumulated Other Comprehensive Income [Member]      
Adoption of New Accounting Standards [Abstract]      
Transfer made from AOCI to retained earnings $ (278)    
ASU 2018-02 [Member] | Retained Earnings [Member]      
Adoption of New Accounting Standards [Abstract]      
Transfer made from AOCI to retained earnings $ 278    
ASU 2016-02 [Member]      
Adoption of New Accounting Standards [Abstract]      
Right-of-use asset   $ 640 $ 800
Lease obligation liability   $ 642 $ 800