Quarterly report pursuant to Section 13 or 15(d)

Commitments and Contingencies (Details Narrative)

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Commitments and Contingencies (Details Narrative) - USD ($)
$ in Thousands
 1 Months Ended 3 Months Ended
Jun. 30, 2003
Mar. 31, 2019
Mar. 31, 2018
Dec. 31, 2018
Interest income, other   $ 81 $ 49  
Letters of credit outstanding, amount   2,639    
Bond outstanding   18,782    
American International Group, Inc [Member]        
Period of finite risk insurance policy 25 years      
Maximum allowable coverage of insurance policy   39,000    
Financial assurance coverage amount under insurance policy   30,549    
Sinking fund related to insurance policy   16,052   $ 15,971
Interest earned on sinking fund   1,581   $ 1,500
Interest income, other   $ 81 $ 50  
Insurers obligation to entity on termination of contract   100.00%