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Note 2 - Investments (Tables)
 6 Months Ended
Jun. 30, 2017
Notes Tables  
Available-for-sale Securities [Table Text Block]
   
June 30, 2017
  
   
Cost or
    
Gross
    
Gross
    
 
 
 
   
Amortized
    
Unrealized
    
Unrealized
    
 
 
 
   
Cost
    
Gains
    
Losses
    
Fair Value
  
Available for sale:
  
(Unaudited)
  
Fixed maturities:
  
 
 
 
  
 
 
 
  
 
 
 
  
 
 
 
US Treasury securities
  
$
267,504
    
$
-
    
$
(15,902
)
  
$
251,602
  
Corporate bonds
  
 
3,966,440
    
 
116,132
    
 
(18,574
)
  
 
4,063,998
  
Municipal bonds
  
 
4,145,420
    
 
129,749
    
 
(14,552
)
  
 
4,260,617
  
Mortgage backed and asset backed securities
  
 
2,486,934
    
 
42,812
    
 
(17,627
)
  
 
2,512,119
  
Total fixed maturities
  
 
10,866,298
    
 
288,693
    
 
(66,655
)
  
 
11,088,336
  
Equities:
  
 
 
 
  
 
 
 
  
 
 
 
  
 
 
 
Equities
  
 
6,834,157
    
 
327,375
    
 
(73,906
)
  
 
7,087,626
  
Other equity investments
  
 
109,162
    
 
23,698
    
 
-
    
 
132,860
  
Total equities
  
 
6,943,319
    
 
351,073
    
 
(73,906
)
  
 
7,220,486
  
Total available for sale
  
$
17,809,617
    
$
639,766
    
$
(140,561
)
  
$
18,308,822
  
   
December 31, 2016
  
   
Cost or
    
Gross
    
Gross
    
 
 
 
   
Amortized
    
Unrealized
    
Unrealized
    
 
 
 
   
Cost
    
Gains
    
Losses
    
Fair Value
  
Available for sale:
  
 
 
 
  
 
 
 
  
 
 
 
  
 
 
 
Fixed maturities:
  
 
 
 
  
 
 
 
  
 
 
 
  
 
 
 
US Treasury securities
   $
314,992
     $
-
     $
(15,830
 )   $
299,162
  
Corporate bonds
    
3,828,418
      
62,712
      
(45,234
 )    
3,845,896
  
Municipal bonds
    
2,841,137
      
46,883
      
(38,191
 )    
2,849,829
  
Mortgage backed and asset backed securities
    
3,333,617
      
36,870
      
(45,300
 )    
3,325,187
  
Total fixed maturities
    
10,318,164
      
146,465
      
(144,555
 )    
10,320,074
  
Equities:
  
 
 
 
  
 
 
 
  
 
 
 
  
 
 
 
Equities
    
4,723,024
      
350,981
      
(131,757
 )    
4,942,248
  
Other equity investments
    
182,929
      
23,046
      
(4,719
 )    
201,256
  
Total equities
    
4,905,953
      
374,027
      
(136,476
 )    
5,143,504
  
Total available for sale
   $
15,224,117
     $
520,492
     $
(281,031
 )   $
15,463,578
  
Investments Classified by Contractual Maturity Date [Table Text Block]
   
Amortized
          
   
Cost
    
Fair Value
  
Amounts maturing in:
  
(unaudited)
  
One year or less
   $
99,976
     $
99,932
  
After one year through five years
    
1,220,739
      
1,221,261
  
After five years through ten years
    
1,894,372
      
1,914,255
  
More than 10 years
    
5,164,277
      
5,340,769
  
Mortgage backed and asset backed securities
    
2,486,934
      
2,512,119
  
Total fixed maturities
   $
10,866,298
     $
11,088,336
  
Realized Gain (Loss) on Investments [Table Text Block]
   
Six Months Ended June 30,
  
   
(unaudited)
  
   
2017
    
2016
  
Gross gains
  
$
227,463
     $
12,830
  
Gross losses
  
 
(18,961
)
    
(2,066
 )
Net security (losses) gains
  
$
208,502
     $
10,764
  
   
Three Months Ended June 30,
  
   
(unaudited)
  
   
2017
    
2016
  
Gross gains
  
$
35,058
     $
1,992
  
Gross losses
  
 
(18,961
)
    
(2,066
 )
Net security (losses) gains
  
$
16,097
     $
(74
 )
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value [Table Text Block]
   
Less than 12 months
    
Greater than 12 months
    
Total
  
   
Fair
    
Unrealized
    
Fair
    
Unrealized
    
Fair
    
Unrealized
  
   
Value
    
Loss
    
Value
    
Loss
    
Value
    
Loss
  
June 30, 2017                                                                                                                                                                                                      (unaudited)
  
Available for sale:
  
 
 
 
  
 
 
 
  
 
 
 
  
 
 
 
  
 
 
 
  
 
 
 
Fixed maturities:
  
 
 
 
  
 
 
 
  
 
 
 
  
 
 
 
  
 
 
 
  
 
 
 
US Treasury securities
  
$
251,602
    
$
(15,902
)
  
$
-
    
$
-
    
$
251,602
    
$
(15,902
)
Corporate bonds
  
 
1,117,565
    
 
(17,474
)
  
 
48,806
    
 
(1,100
)
  
 
1,166,371
    
 
(18,574
)
Municipal bonds
  
 
724,631
    
 
(14,552
)
  
 
-
    
 
-
    
 
724,631
    
 
(14,552
)
Mortgage backed and asset backed securities
  
 
850,512
    
 
(15,649
)
  
 
99,326
    
 
(1,978
)
  
 
949,838
    
 
(17,627
)
Total fixed maturities
  
 
2,944,310
    
 
(63,577
)
  
 
148,132
    
 
(3,078
)
  
 
3,092,442
    
 
(66,655
)
Equities:
  
 
 
 
  
 
 
 
  
 
 
 
  
 
 
 
  
 
 
 
  
 
 
 
Equities
  
 
771,225
    
 
(23,360
)
  
 
843,041
    
 
(50,546
)
  
 
1,614,266
    
 
(73,906
)
Other equity investments
  
 
-
    
 
-
    
 
-
    
 
-
    
 
-
    
 
-
  
Total equities
  
 
771,225
    
 
(23,360
)
  
 
843,041
    
 
(50,546
)
  
 
1,614,266
    
 
(73,906
)
Total available for sale
  
$
3,715,535
    
$
(86,937
)
  
$
991,173
    
$
(53,624
)
  
$
4,706,708
    
$
(140,561
)
   
Less than 12 months
    
Greater than 12 months
    
Total
  
   
Fair
    
Unrealized
    
Fair
    
Unrealized
    
Fair
    
Unrealized
  
   
Value
    
Loss
    
Value
    
Loss
    
Value
    
Loss
  
December 31, 2016
  
Available for sale:
  
 
 
 
  
 
 
 
  
 
 
 
  
 
 
 
  
 
 
 
  
 
 
 
Fixed maturities:
  
 
 
 
  
 
 
 
  
 
 
 
  
 
 
 
  
 
 
 
  
 
 
 
US Treasury securities
  
$
299,162
    
$
(15,830
)
  
$
-
    
$
-
    
$
299,162
    
$
(15,830
)
Corporate bonds
  
 
1,897,000
    
 
(42,994
)
  
 
196,399
    
 
(2,240
)
  
 
2,093,399
    
 
(45,234
)
Municipal bonds
  
 
1,296,688
    
 
(38,191
)
  
 
-
    
 
-
    
 
1,296,688
    
 
(38,191
)
Mortgage backed and asset backed securities
  
 
1,700,173
    
 
(39,264
)
  
 
134,090
    
 
(6,036
)
  
 
1,834,263
    
 
(45,300
)
Total fixed maturities
  
 
5,193,023
    
 
(136,279
)
  
 
330,489
    
 
(8,276
)
  
 
5,523,512
    
 
(144,555
)
Equities:
  
 
 
 
  
 
 
 
  
 
 
 
  
 
 
 
  
 
 
 
  
 
 
 
Equities
  
 
1,007,860
    
 
(59,357
)
  
 
1,063,959
    
 
(72,400
)
  
 
2,071,819
    
 
(131,757
)
Other equity investments
  
 
52,840
    
 
(4,719
)
  
 
-
    
 
-
    
 
52,840
    
 
(4,719
)
Total equities
  
 
1,060,700
    
 
(64,076
)
  
 
1,063,959
    
 
(72,400
)
  
 
2,124,659
    
 
(136,476
)
Total available for sale
  
$
6,253,723
    
$
(200,355
)
  
$
1,394,448
    
$
(80,676
)
  
$
7,648,171
    
$
(281,031
)