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Consolidated Balance Sheets - USD ($)
$ in Thousands
Dec. 31, 2023
Dec. 31, 2022
Current Assets:    
Cash and cash equivalents $ 5,684 $ 6,451
Short-term held-to-maturity investments 0 2,606
Accounts receivable, net 287 79
Contract assets 188 20
Prepaid expenses and other assets 350 577
Total current assets 6,509 9,733
Fixed assets, net 275 384
Patents and other intangible assets, net 836 798
Other assets   10
Total Assets 7,620 10,925
Current Liabilities:    
Accounts payable and accrued liabilities 366 296
Current portion of lease liabilities 71 133
Accrued compensation and related taxes 703 471
Contract liabilities 1,116 247
Total current liabilities 2,256 1,147
Long Term Liabilities:    
Long term lease liabilities 172 226
Total liabilities 2,428 1,373
Commitments and contingencies (Note 10)
Stockholders' Equity:    
Preferred stock, $0.0001 par value, zero shares issued and outstanding
Common stock, $0.0001 par value, 38,687,061 and 38,023,701 shares issued and outstanding at December 31, 2023 and December 31, 2022, respectively 4 4
Additional paid-in capital 98,922 98,079
Accumulated other comprehensive loss (17) (8)
Accumulated deficit (93,717) (88,523)
Total equity 5,192 9,552
Total Liabilities and Equity $ 7,620 $ 10,925