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INCOME TAXES (Tables)
 6 Months Ended
Jun. 30, 2019
Income Tax Disclosure [Abstract]  
Reconciliation of income tax expense (benefit)
The actual income tax expense (benefit) for the three and six months ended June 30, 2019 and 2018 differed from the “expected” income tax expense (benefit) for those periods (computed by applying the United States federal corporate tax rate of 21 percent to income (loss) before income tax expense (benefit)) as follows:
 
 
Three months ended 
 June 30,
 
Six months ended 
 June 30,
($ in thousands)
 
2019
 
2018
 
2019
 
2018
Computed "expected" income tax expense (benefit)
 
$
345

 
$
(1,622
)
 
$
9,225

 
$
(1,733
)
Increases (decreases) in tax resulting from:
 
 
 
 
 
 
 
 
Incremental benefit of net operating loss carry back
 
—

 
(839
)
 
—

 
(839
)
Tax-exempt interest income
 
(269
)
 
(297
)
 
(552
)
 
(607
)
Dividends received deduction
 
(166
)
 
(151
)
 
(298
)
 
(274
)
Proration of tax-exempt interest and dividends received deduction
 
108

 
112

 
212

 
220

Nondeductible expenses
 
374

 
30

 
419

 
55

Internal Revenue Code 50(d)(5) income from investment tax credits
 
(111
)
 
(36
)
 
110

 
—

Other, net
 
75

 
76

 
(6
)
 
(1
)
Total income tax expense (benefit)
 
$
356

 
$
(2,727
)
 
$
9,110

 
$
(3,179
)