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INCOME AND FRANCHISE TAXES (Tax Credit Carryforwards) (Details) - USD ($)
Dec. 31, 2017
Dec. 31, 2016
Operating loss carryforwards    
Net deferred tax assets $ 26,493,000 $ 58,926,000
Unrecognized tax benefits that, if recognized would favorably affect the effective income tax rate 0  
State    
Operating loss carryforwards    
Tax credit carryforwards that do not expire 11,300,000  
State | CALIFORNIA    
Operating loss carryforwards    
Net operating loss carryforwards 3,300,000  
State | HAWAII    
Operating loss carryforwards    
Tax credit carryforwards that do not expire $ 1,200,000