• Filing Date: 2019-08-13
  • Form Type: 10-Q
  • Description: Quarterly report
v3.19.2
Cash, Cash Equivalent, and Investments (Details) - USD ($)
3 Months Ended 6 Months Ended 12 Months Ended
Jun. 30, 2019
Jun. 30, 2018
Jun. 30, 2019
Jun. 30, 2018
Dec. 31, 2018
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]          
Cash and Cash Equivalents $ 4,781,520   $ 4,781,520   $ 2,386,314
Short term investments, adjusted cost 32,104,149   32,104,149   38,816,441
Long term investments, adjusted cost 1,516,670   1,516,670   0
Cash and Investment, fair value 38,423,674   38,423,674   41,117,434
Investment, gross unrealized holding gain 26,111   26,111   0
Investment, gross unrealized holding losses (4,775)   (4,775)   (85,321)
Cash and Investment, adjusted cost 38,402,338   38,402,338   41,202,755
Cash          
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]          
Cash and Cash Equivalents 767,894   767,894   1,048,272
Money Market Funds | Level 1          
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]          
Cash and Cash Equivalents 4,013,626   4,013,626   1,338,042
Corporate bonds          
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]          
Held-to-maturity, premium paid on purchase 23,308 $ 26,014 104,163 $ 313,705 378,681
Corporate bonds | Level 2          
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]          
Short term investments, fair value 32,119,864   32,119,864   38,731,120
Short term investments, gross unrealized holding gain 20,490   20,490   0
Short term investments, gross unrealized holding loss (4,775)   (4,775)   (85,321)
Short term investments, adjusted cost 32,104,149   32,104,149   $ 38,816,441
Long term Investments, fair value 1,522,290   1,522,290    
Long term Investments, gross unrealized holding gain 5,621   5,621    
Long term Investments, gross unrealized holding loss 0   0    
Long term investments, adjusted cost $ 1,516,669   $ 1,516,669