Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2020	Jun. 30, 2020
Current assets
Cash and cash equivalents	$ 22,121	$ 3,349
Restricted cash	542
Accounts receivable	95	101
Inventory:
Raw materials	173	416
Work-in-process	221	38
Finished goods	194	222
Income tax receivable		429
Prepaid expenses and other current assets	76	117
Total current assets	23,422	4,672
Property and equipment, net	85	99
Assets held for disposal		237
Operating leases, right-of-use assets, net	72	851
Other assets		71
Total assets	23,579	5,930
Current liabilities
Accounts payable	228	239
Payroll related accruals	434	433
Accrued expenses and other liabilities	939	627
Income tax payable	2	2
Term note payable - related party	2,500	2,500
Term note payable	421	210
Lease liabilities	82	339
Total current liabilities	4,606	4,350
Term note payable, net of current portion	121	332
Lease liabilities, net of current portion	42	623
Total liabilities	4,769	5,305
Commitments and contingencies (Note 12)
Stockholders’ equity
Common stock, $0.001 par value, 50,000,000 shares authorized; 18,941,345 and 8,250,286 shares issued at December 31, 2020 and June 30, 2020, respectively; 18,541,429 and 7,850,362 shares outstanding at December 31, 2020 and June 30, 2020, respectively	190,610	190,599
Treasury stock, 399,916 shares at cost at December 31, 2020 and June 30, 2020	(4,129)	(4,129)
Additional paid-in capital	35,841	13,934
Accumulated deficit	(203,512)	(199,779)
Total stockholders’ equity	18,810	625
Total liabilities and stockholders’ equity	23,579	5,930
Convertible Preferred Stock
Stockholders’ equity
Convertible preferred stock, $0.001 par value, 2,500,000 shares authorized; 280,898 shares of Series D issued and outstanding at December 31, 2020 and June 30, 2020