Consolidated Balance Sheets - USD ($)	Dec. 31, 2022	Jun. 30, 2022
Current assets:
Cash and cash equivalents	$ 21,182,839	$ 29,939,154
Accounts receivable	1,806,990	1,780,020
Other receivables	4,674,999	0
Inventories	759,268	944,471
Prepaid expenses and other current assets	2,127,230	1,932,454
Total current assets	30,551,326	34,596,099
Property and equipment, net	674,567	539,314
Right-of-use assets - operating leases	693,729	878,465
Other assets	56,916	56,916
Total assets	31,976,538	36,070,794
Current liabilities:
Accounts payable	820,304	3,157,617
Accrued expenses	6,065,821	6,875,216
Short-term operating lease liabilities	335,732	371,124
Short-term finance lease liabilities	103,622	100,921
Other current liabilities	4,094,600	5,754,986
Total current liabilities	11,420,079	16,259,864
Long-term operating lease liabilities	380,161	529,398
Long-term finance lease liabilities	99,912	152,407
Other long-term liabilities	3,732,800	2,861,250
Total liabilities	15,632,952	19,802,919
Commitments and contingencies (Note 12)	0	0
Escrowed proceeds	0	(15,000,000)
Stockholders' equity:
Preferred stock value	40	40
Common stock of $0.01 par value - authorized 300,000,000 shares: issued and outstanding 10,354,498 shares as of December 31, 2022 and 9,270,947 shares as of June 30, 2022 (Note 1)	103,545	92,709
Additional paid-in capital	413,913,202	404,168,822
Accumulated deficit	(397,673,201)	(387,993,696)
Total stockholders' equity	16,343,586	16,267,875
Total liabilities, redeemable convertible preferred stock, and stockholders' equity	31,976,538	36,070,794
Series B And Series C Preferred Stock
Stockholders' equity:
Preferred stock value	$ 0	$ 15,000,000