Consolidated Statements of Stockholders' Equity - USD ($)
Common stock
Retroactive Application Of Recapitalization
Common stock
Adjusted Balance
Common stock
Additional Paid-in Capital
Retroactive Application Of Recapitalization
Additional Paid-in Capital
Adjusted Balance
Additional Paid-in Capital
Accumulated Deficit
Retroactive Application Of Recapitalization
Accumulated Deficit
Adjusted Balance
Accumulated Deficit
Retroactive Application Of Recapitalization
Adjusted Balance
Total
Balance at the beginning at Dec. 31, 2019                   $ (29,096,000)   $ 29,096,000
Balance at the beginning at Dec. 31, 2019 $ 6,000 $ 7,000 $ 1,000 $ 26,145,000 $ 26,145,000   $ 2,945,000 $ (13,252,000) $ (16,197,000) $ 29,096,000 $ 12,900,000 (16,196,000)
Balance at the beginning (in shares) at Dec. 31, 2019 61,573,943 68,787,673 7,213,730                  
Increase (Decrease) in Stockholders' Equity [Roll Forward]                        
Net Income (Loss)                 (14,375,000)     (14,375,000)
Expenses related to issuance of warrants           $ 16,000           16,000
Beneficial Conversion feature on convertible debt           5,125,000           5,125,000
Stock options exercised (in shares)     1,097,370                  
Stock options exercised     $ 1,097,370     24,000           24,000
Stock-based compensation expense           182,000           182,000
Balance at the end at Dec. 31, 2020     $ 7,000     31,492,000     (27,627,000)     3,872,000
Balance at the end (in shares) at Dec. 31, 2020     69,885,043                  
Increase (Decrease) in Stockholders' Equity [Roll Forward]                        
Net Income (Loss)                 18,092,000     18,092,000
Business Combination, net of redemptions and transaction costs of $47,888     $ 6,000     394,587,000           394,593,000
Business Combination, net of redemptions and transaction costs of $47,888 (in shares)     63,039,829                  
Beneficial Conversion feature on convertible debt           4,875,000           4,875,000
Redemption of Series A-1 redeemable preferred stock [1]           (6,041,000)           (6,041,000)
Redemption of Series A-1 redeemable preferred stock (in shares) [1]     (1,065,432)                  
Issuance of Series B redeemable preferred stock net of issuance costs of $4,511 and settlement of associated convertible preferred stock liability [1]     $ 3,000     140,436,000           140,439,000
Issuance of Series B redeemable preferred stock net of issuance costs of $4,511 and settlement of associated convertible preferred stock liability (in shares) [1]     27,930,997                  
Warrants exercised     $ 1,000     14,000           15,000
Stock options exercised (in shares)     1,160,930                  
Warrants exercised (in shares)     6,606,621                  
Issuance Costs                       4,511,000
Stock options exercised     $ 1,160,930     106,000           106,000
Stock-based compensation expense           2,714,000           2,714,000
Balance at the end at Dec. 31, 2021     $ 17,000     $ 568,183,000     $ (9,535,000)     $ 558,665,000
Balance at the end (in shares) at Dec. 31, 2021     167,557,988                  
[1] Legacy Solid Power preferred stock transactions converted to common with recast at Business Combination.