STATEMENTS OF COMPREHENSIVE INCOME (Parenthetical) - USD ($) |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2016 |
Dec. 31, 2015 |
Dec. 31, 2014 |
|
| STATEMENTS OF COMPREHENSIVE INCOME | |||
| Change in fair value of available-for-sale securities, tax benefit | $ 19,406 | $ 23,500 | $ 10,659 |
| Reclassification to net income, tax (benefit) expense | $ (30,757) | $ (1,334) | $ 2,560 |