| Schedule of cash, cash equivalents and marketable securities |
|
As of December 31, 2021
|
|
|
|
|
Amortized Cost
|
|
|
Unrealized Gain
|
|
|
Unrealized (Loss)
|
|
|
Fair Value
|
|
|
Cash and cash equivalents
|
|
$
|
34,688,880
|
|
|
$
|
—
|
|
|
$
|
—
|
|
|
$
|
34,688,880
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
U.S. Treasury Bonds
|
|
|
421
|
|
|
|
—
|
|
|
|
(421
|
) |
|
|
—
|
|
|
Total marketable securities
|
|
$
|
421
|
|
|
$
|
—
|
|
|
$
|
(421
|
) |
|
$
|
—
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Total cash, cash equivalents and marketable securities
|
|
$
|
34,689,301
|
|
|
$
|
—
|
|
|
$
|
(421
|
) |
|
$
|
34,688,880
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
As of December 31, 2020
|
|
|
|
|
Amortized Cost
|
|
|
Unrealized Gain
|
|
|
Unrealized (Loss)
|
|
|
Fair Value
|
|
|
Cash and cash equivalents
|
|
$
|
4,241,937
|
|
|
$
|
—
|
|
|
$
|
—
|
|
|
$
|
4,241,937
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
U.S. Treasury Bonds
|
|
|
18,388,970
|
|
|
|
—
|
|
|
|
(2,810
|
) |
|
|
18,386,160
|
|
|
Total marketable securities
|
|
$
|
18,388,970
|
|
|
$
|
—
|
|
|
$
|
(2,810
|
) |
|
$
|
18,386,160
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Total cash, cash equivalents and marketable securities
|
|
$
|
22,630,907
|
|
|
$
|
—
|
|
|
$
|
(2,810
|
) |
|
$
|
22,628,097
|
|
|