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Condensed Consolidated Balance Sheets - USD ($)
$ in Thousands
Mar. 31, 2022
Dec. 31, 2021
Current Assets:    
Cash and cash equivalents $ 6,667 $ 7,607
Accounts receivable, net 27 33
Contract assets 244 39
Prepaid expenses and other assets 401 345
Total current assets 7,339 8,024
Fixed assets, net 493 530
Patents and other intangible assets, net 802 799
Other assets 10 10
Total Assets 8,644 9,363
Current Liabilities:    
Accounts payable and accrued liabilities 294 224
Current portion of lease liabilities 212 205
Accrued compensation and related taxes 196 218
Contract liabilities 84 84
Total current liabilities 786 731
Long Term Liabilities:    
Long term lease liabilities 294 350
Total liabilities 1,080 1,081
Commitments and contingencies (note 7)
Stockholders' Equity:    
Preferred stock, $0.0001 par value, zero shares issued and outstanding
Common stock, $0.0001 par value, 32,154,746 and 31,581,666 shares issued and outstanding at March 31, 2022 and December 31, 2021, respectively 3 3
Additional paid-in capital 91,807 91,035
Accumulated other comprehensive income 9 9
Accumulated deficit (84,255) (82,765)
Total ClearSign Technologies Corporation stockholders' equity 7,564 8,282
Total equity 7,564 8,282
Total Liabilities and Equity $ 8,644 $ 9,363