Annual report pursuant to Section 13 and 15(d)

CONSOLIDATED STATEMENTS OF INCOME AND COMPREHENSIVE INCOME (Parentheticals)

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CONSOLIDATED STATEMENTS OF INCOME AND COMPREHENSIVE INCOME (Parentheticals) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Income Statement [Abstract]    
Stock-based compensation $ 1,306 $ 1,313