Consolidated Balance Sheets - USD ($)	Jun. 30, 2020	Jun. 30, 2019
Current assets:
Cash and cash equivalents	$ 82,852,270	$ 43,510,422
Accounts receivable	0	60,265,970
Prepaid expenses and other current assets	738,216	637,289
Total current assets	83,590,486	104,413,681
Property and equipment, net	140,216	141,539
Right-of-use assets	1,266,132	0
Other assets	56,916	179,916
Total assets	85,053,750	104,735,136
Current liabilities:
Accounts payable	715,672	504,787
Accrued expenses	2,899,097	2,848,692
Notes payable, net of discount	0	332,896
Short-term operating lease liabilities	312,784	0
Other current liabilities	0	499,517
Total current liabilities	3,927,553	4,185,892
Long-term operating lease liabilities	953,348	0
Total liabilities	4,880,901	4,185,892
Commitments and contengencies (Note 12)
Stockholders' deficiency:
Preferred stock of $0.01 par value, authorized 10,000,000 shares: Series A Convertible: authorized 264,000 shares: issued and outstanding 4,030 shares as of June 30, 2020 and June 30, 2019	40	40
Common stock of $0.01 par value, authorized 300,000,000 shares; issued and outstanding 229,258,400 shares as of June 30, 2020 and 226,815,363 shares as of June 30, 2019	2,292,584	2,268,154
Additional paid-in capital	396,079,127	394,053,929
Accumulated deficit	(318,198,902)	(295,772,879)
Total stockholders' (deficiency) equity	80,172,849	100,549,244
Total liabilities and stockholders' equity	$ 85,053,750	$ 104,735,136