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INCOME TAXES (Details 1)
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Effective Income Tax Rate Reconciliation [Line Items]    
U.S. federal statutory income tax rate 21.00% 35.00%
State income taxes, net of federal tax benefit 3.60% 2.90%
Non-taxable municipal bond interest (0.50%) (0.90%)
Foreign income tax rate differences 0.80% 0.10%
Impact of tax rate change on deferred taxes 0.00% (5.80%)
Share-based compensation (2.50%) 0.30%
Other 0.10% (1.40%)
Effective tax rate 22.50% 30.20%