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Consolidated Balance Sheets - USD ($)
$ in Thousands
Jan. 31, 2023
Apr. 30, 2022
Current assets:    
Cash and cash equivalents $ 10,920 $ 7,885
Short term investments 30,005 49,384
Restricted cash, short-term 65 258
Accounts receivable 706 482
Contract assets 93 386
Inventory 1,436 442
Other current assets 1,997 467
Total current assets 45,222 59,304
Property and equipment, net 591 445
Intangibles, net 4,017 4,136
Right-of-use asset, net 522 752
Restricted cash, long-term 154 219
Goodwill 8,537 8,537
Total assets 59,043 73,393
Current liabilities:    
Accounts payable 591 905
Accrued expenses 1,626 877
Contingent liabilities, current portion 875 748
Right-of-use liability, current portion 320 319
Contract liabilities 1,334 129
Total current liabilities 4,746 2,978
Deferred tax liability 203 203
Right-of-use liability, less current portion 282 538
Contingent liabilities, less current portion 870 843
Total liabilities 6,101 4,562
Commitments and contingencies (Note 15)
Shareholders’ 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 56,254,642 shares and 55,905,213 shares, respectively; outstanding 56,213,728 shares and 55,881,861 shares, respectively 56 56
Treasury stock, at cost; 40,914 shares and 23,352 shares, respectively (355) (341)
Additional paid-in capital 323,843 322,932
Accumulated deficit (270,556) (253,770)
Accumulated other comprehensive loss (46) (46)
Total shareholders’ equity 52,942 68,831
Total liabilities and shareholders’ equity $ 59,043 $ 73,393