Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2020	Jun. 30, 2020
ASSETS
Cash	$ 59,765	$ 73,639
Accounts receivable, net	1,941	2,076
BARDA receivables	440	356
Prepaids and other current assets	814	990
Restricted cash	201	201
Inventory	2,289	1,125
Total current assets	65,450	78,387
Plant and equipment, net	1,488	1,363
Operating lease right-of-use assets	1,795	2,347
Intangible assets, net	420	364
Other long-term assets	152	1
Total assets	69,305	82,462
LIABILITIES AND STOCKHOLDERS' EQUITY
Accounts payable and accrued liabilities	2,793	4,333
Accrued wages and fringe benefits	4,305	2,816
Other current liabilities	775	560
Total current liabilities	7,873	7,709
Contract liabilities	596	435
Operating lease liabilities, long term	1,239	1,917
Total liabilities	9,708	10,061
Contingencies (Note 10)
Shareholders' Equity:
Common stock, $0.0001 par value per share, 200,000,000 shares authorized, 21,625,058 and 21,467,912 shares issued and outstanding at December 31, 2020 and June 30, 2020, respectively	3	3
Preferred stock, $0.0001 par value per share, 10,000,000 shares authorized, no shares issued or outstanding at December 31, 2020 and June 30, 2020
Additional paid-in capital	262,086	259,165
Accumulated other comprehensive income	8,289	8,146
Accumulated deficit	(210,781)	(194,913)
Total shareholders' equity	59,597	72,401
Total liabilities and shareholders' equity	$ 69,305	$ 82,462