Annual report pursuant to Section 13 and 15(d)

INCOME TAXES - Narrative (Details)

v3.8.0.1
INCOME TAXES - Narrative (Details)
12 Months Ended
Dec. 31, 2017
USD ($)
examination
Dec. 31, 2016
USD ($)
Dec. 31, 2015
Income Taxes (Textual) [Abstract]      
Statutory federal income tax rate 35.00% 35.00% 35.00%
Effective tax rate 42.10% 31.40% 32.10%
Deferred tax asset $ 35,162,000 $ 53,320,000  
Deferred tax liabilities 4,240,000 3,128,000  
Unrecognized tax benefits 0 $ 0  
Deferred tax assets, valuation allowance 0    
Provisional income tax expense from reduction of deferred tax asset related to the Tax Act 19,700,000    
NOL carryover, valuation allowance 0    
Accrued liabilities [Member]      
Income Taxes (Textual) [Abstract]      
Income taxes payable 7,200,000    
State [Member]      
Income Taxes (Textual) [Abstract]      
NOL carryforwards $ 1,800,000    
Number of income tax examinations pending | examination 1    
Federal [Member]      
Income Taxes (Textual) [Abstract]      
Tax credits $ 0    
NOL carryforwards $ 0