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Receivables (Tables)
 6 Months Ended
Jun. 30, 2018
Receivables [Abstract]  
Receivables
Receivables consist of:
 
June 30,
2018
 
December 31,
2017
 
(In thousands)
Other receivables and accrued interest
$
87

 
$
2,557

Loans secured by real estate, average interest rate of 5.40%
     at June 30, 2018 and at December 31, 2017
2,952

 
3,776

 
3,039

 
6,333

Allowance for bad debts
(26
)
 
(26
)
 
$
3,013

 
$
6,307