Quarterly report pursuant to Section 13 or 15(d)

Fair Value Measurement - Marketable Securities - Schedule of Marketable Securities (Details)

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Fair Value Measurement - Marketable Securities - Schedule of Marketable Securities (Details) - USD ($)
6 Months Ended 12 Months Ended
Jun. 30, 2017
Dec. 31, 2016
Schedule of Available-for-sale Securities [Line Items]    
Cost $ 1,009,584 $ 49,971
Accrued Income 1,030 30
Unrealized Gains 1,009
Unrealized Losses
Fair Value 1,011,623 50,001
Fair Value, Inputs, Level 2 [Member]    
Schedule of Available-for-sale Securities [Line Items]    
Cost 1,009,584 49,971
Accrued Income 1,030 30
Unrealized Gains 1,009
Unrealized Losses
Fair Value 1,011,623 50,001
Fair Value, Inputs, Level 2 [Member] | Money Market Funds [Member]    
Schedule of Available-for-sale Securities [Line Items]    
Cost 228 29,657
Accrued Income 15
Unrealized Gains
Unrealized Losses
Fair Value 228 29,672
Fair Value, Inputs, Level 2 [Member] | Municipal Securities [Member]    
Schedule of Available-for-sale Securities [Line Items]    
Cost 1,009,356 20,314
Accrued Income 1,030 15
Unrealized Gains 1,009
Unrealized Losses
Fair Value $ 1,011,395 $ 20,329