| Schedule of the fair value of assets and liabilities subject to recurring fair value measurements |
|
|
|
Fair Value at December 31, 2015
|
|
|
|
|
Fair
Value
|
|
Quoted Prices
in Active
Market for
Identical Assets
(Level 1)
|
|
Significant
Other
Observable
Inputs
(Level 2)
|
|
Significant
Unobservable
Inputs
(Level 3)
|
|
|
Corporate bonds:
|
|
|
|
|
|
|
|
|
|
|
U.S. corporations
|
|
$
|
6,107,960
|
|
$
|
—
|
|
$
|
6,107,960
|
|
$
|
—
|
|
|
International corporations
|
|
1,494,244
|
|
—
|
|
1,494,244
|
|
—
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Total
|
|
$
|
7,602,204
|
|
$
|
—
|
|
$
|
7,602,204
|
|
$
|
—
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Fair Value at December 31, 2014
|
|
|
|
|
Fair
Value
|
|
Quoted Prices
in Active
Market for
Identical Assets
(Level 1)
|
|
Significant
Other
Observable
Inputs
(Level 2)
|
|
Significant
Unobservable
Inputs
(Level 3)
|
|
|
Corporate bonds:
|
|
|
|
|
|
|
|
|
|
|
U.S. corporations
|
|
$
|
6,406,219
|
|
$
|
—
|
|
$
|
6,406,219
|
|
$
|
—
|
|
|
International corporations
|
|
1,507,574
|
|
—
|
|
1,507,574
|
|
—
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Total
|
|
$
|
7,913,793
|
|
$
|
—
|
|
$
|
7,913,793
|
|
$
|
—
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|