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Consolidated Balance Sheets - USD ($)
$ in Thousands
Jul. 31, 2021
Apr. 30, 2021
Current assets:    
Cash and cash equivalents $ 77,720 $ 83,028
Restricted cash, short-term 384 384
Accounts receivable 446 350
Contract assets 304 190
Other current assets 507 487
Total current assets 79,361 84,439
Property and equipment, net 373 406
Intangibles, net 268 274
Right-of-use asset, net 967 1,036
Restricted cash, long-term 222 222
Total assets 81,191 86,377
Current liabilities:    
Accounts payable 454 687
Accrued expenses 1,821 1,881
Right-of-use liability, current portion 317 347
Litigation payable 1,224
Liability classified stock awards 60 60
Paycheck protection program loan- current 495
Total current liabilities 2,652 4,694
Paycheck protection program loan, less current portion 396
Right-of-use liability, less current portion 774 819
Total liabilities 3,426 5,909
Commitments and contingencies (Note 16)  
Stockholders’ Equity:    
Preferred stock, $0.001 par value; authorized 5,000,000 shares, none issued or outstanding
Common stock, $0.001 par value; authorized 100,000,000 shares, issued  52,458,011 shares 52 52
Treasury stock, at cost; 21,040 shares (338) (338)
Additional paid-in capital 316,211 315,821
Accumulated deficit (237,975) (234,896)
Accumulated other comprehensive loss (185) (171)
Total stockholders’ equity 77,765 80,468
Total liabilities and stockholders’ equity $ 81,191 $ 86,377