Annual report pursuant to Section 13 and 15(d)

FINANCIAL INSTRUMENTS AND INVESTMENTS - Schedule of Cash and Cash Equivalents and Investments (Details)

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FINANCIAL INSTRUMENTS AND INVESTMENTS - Schedule of Cash and Cash Equivalents and Investments (Details) - USD ($)
Dec. 31, 2017
Dec. 31, 2016
Adjusted Cost $ 13,838,416 $ 13,590,000
Pre-Tax Unrealized Losses (121,665) (179,208)
Fair Value 13,716,751 13,410,792
Cash and Cash Equivalents 888,942 1,053,844
Short Term 4,310,627 5,959,361
Long Term 8,517,182 6,397,587
Level 1    
Adjusted Cost 2,515,178 2,527,380
Pre-Tax Unrealized Losses (29,679) (90,495)
Fair Value 2,485,499 2,436,885
Cash and Cash Equivalents 888,942 1,053,844
Long Term 1,596,557 1,383,041
Level 2    
Adjusted Cost 11,323,238 11,062,620
Pre-Tax Unrealized Losses (91,986) (88,713)
Fair Value 11,231,252 10,973,907
Short Term 4,310,627 5,959,361
Long Term 6,920,625 5,014,546
Money Market Funds | Level 1    
Adjusted Cost 888,942 1,053,844
Fair Value 888,942 1,053,844
Cash and Cash Equivalents 888,942 1,053,844
Mutual Funds | Level 1    
Adjusted Cost 1,626,236 1,473,536
Pre-Tax Unrealized Losses (29,679) (90,495)
Fair Value 1,596,557 1,383,041
Long Term 1,596,557 1,383,041
Certificates of Deposit | Level 2    
Adjusted Cost 4,009,810 3,886,415
Fair Value 4,009,810 3,886,415
Short Term 4,009,810 2,993,825
Long Term   892,590
Corporate Bonds | Level 2    
Adjusted Cost 2,228,855 2,246,956
Pre-Tax Unrealized Losses (30,081) (29,419)
Fair Value 2,198,774 2,217,537
Short Term 300,817 400,053
Long Term 1,897,957 1,817,484
Municipal Bonds | Level 2    
Adjusted Cost 5,084,573 4,929,249
Pre-Tax Unrealized Losses (61,905) (59,294)
Fair Value 5,022,668 4,869,955
Short Term 0 2,565,483
Long Term $ 5,022,668 $ 2,304,472