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v3.22.4

Subsequent Events (Details) |  |  |  |  |  |  |  |  |  | 1 Months Ended | 6 Months Ended | 9 Months Ended |  |  |  |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Nov. 09, 2022 shares | Oct. 28, 2022 $ / shares shares | May 18, 2022 $ / shares | Mar. 22, 2022 $ / shares shares | Mar. 18, 2022 $ / shares shares | Feb. 25, 2022 shares | Dec. 06, 2021 $ / shares shares | Jun. 07, 2021 $ / shares shares | Nov. 24, 2020 $ / shares shares | Sep. 30, 2022 USD ($) | Jun. 30, 2022 shares | Jun. 30, 2021 | Sep. 30, 2022 USD ($) item | Oct. 27, 2022 shares | Sep. 30, 2022 CNY (¥) | Jun. 29, 2022 shares | Feb. 24, 2022 shares | Dec. 31, 2021 shares | Dec. 17, 2021
Subsequent Event [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Stock split ratio |  |  |  |  |  | 0.1 |  |  |  |  | 0.1 |  |  |  |  |  |  |  |
Number of common shares outstanding automatically combines and converts |  |  |  |  |  | 10 |  |  |  |  |  |  |  |  |  |  |  |  |
Common stock, shares issued |  |  |  |  |  | 6,399,460 |  |  |  |  | 1,219,937 |  |  |  |  | 29,278,601 | 63,994,606 | 266,640 |
Common stock, shares outstanding |  |  |  |  |  | 6,399,460 |  |  |  |  | 1,219,937 |  |  |  |  |  | 6,399,460 | 266,640 |
Common stock, shares authorized |  | 60,000,000 |  |  |  | 60,000,000 |  |  |  |  | 6,000,000 |  |  | 2,500,000 |  |  | 600,000,000 | 6,000,000 |
Issuance of common stock (in shares) |  |  |  |  | 20,000,000 |  | 21,120,509 | 5,380,000 | 6,060,608 |  |  |  |  |  |  |  |  |  |
Shares issued, price per share | $ / shares |  |  |  |  | $ 0.50 |  | $ 0.65 | $ 1.30 | $ 1.65 |  |  |  |  |  |  |  |  |  |
Underwriting option period |  |  |  |  | 45 days |  |  |  |  |  |  |  |  |  |  |  |  |  |
Percentage of underwriters option to purchase additional common shares |  |  |  |  | 15.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |
Consecutive business days preceding the date of the Notice |  |  | 30 days |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share price (per share) | $ / shares |  |  | $ 1.00 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Term of debt |  |  |  |  |  |  |  |  |  |  | 1 year | 12 months |  |  |  |  |  |  |
Annual interest rate |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 6.00%
Placement agent [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Issuance of common stock (in shares) |  |  |  | 2,880,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Shares issued, price per share | $ / shares |  |  |  | $ 0.50 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Subsequent Event |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Stock split ratio | 0.05 | 0.041667 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of common shares outstanding automatically combines and converts | 24 | 24 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Shares issued upon conversion | 1 | 1 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Common stock, shares issued | 1,219,937 | 29,278,601 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Common stock, shares outstanding | 1,219,937 | 1,219,937 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Common stock, shares authorized |  | 60,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Issuance of common stock (in shares) |  | 2,500,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share price (per share) | $ / shares |  | $ 1.00 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Face amount of debt |  |  |  |  |  |  |  |  |  | $ 1,493,000 |  |  | $ 1,493,000 |  | ¥ 10,000,000.0 |  |  |  |
Annual interest rate |  |  |  |  |  |  |  |  |  | 3.90% |  |  | 3.90% |  | 3.90% |  |  |  |
Number of related parties who guaranteed loan | item |  |  |  |  |  |  |  |  |  |  |  |  | 3 |  |  |  |  |  |
Number of unrelated parties who guaranteed loan | item |  |  |  |  |  |  |  |  |  |  |  |  | 1 |  |  |  |  |  |
Maximum guaranteed amount |  |  |  |  |  |  |  |  |  | $ 4,400,000 |  |  | $ 4,400,000 |  | ¥ 29,250,000 |  |  |  |
Subsequent Event | Tantech Bamboo |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Term of debt |  |  |  |  |  |  |  |  |  | 1 year |  |  |  |  |  |  |  |  |

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