Consolidated Balance Sheets - USD ($) $ in Thousands	Mar. 31, 2020	Mar. 31, 2019
Current Assets
Cash and cash equivalents	$ 27,356	$ 36,477
Accounts receivable	111	503
Grant receivable	0	55
Inventory, net	0	490
Prepaid expenses and other current assets	851	1,049
Total current assets	28,318	38,574
Fixed assets, net	0	1,832
Restricted cash	0	79
Other assets, net	123	138
Total assets	28,441	40,623
Current Liabilities
Accounts payable	720	628
Accrued expenses	1,090	2,549
Deferred revenue	0	525
Deferred rent	0	35
Total current liabilities	1,810	3,737
Deferred rent, net of current portion	0	588
Total liabilities	1,810	4,325
Commitments and Contingencies	0	0
Stockholders' Equity
Common stock, $0.001 par value; 200,000,000 shares authorized, 130,558,098 and 124,015,429 shares issued and outstanding at March 31, 2020 and March 31, 2019, respectively	131	124
Additional paid-in capital	305,965	296,929
Accumulated deficit	(279,465)	(260,755)
Total stockholders' equity	26,631	36,298
Total Liabilities and Stockholders' Equity	$ 28,441	$ 40,623