| Schedule of Cash Flow, Supplemental Disclosures [Table Text Block] |
| Thunder Mountain Gold, Inc. | | | | | | | | (An Exploration Stage Company) | | | | | | | | Consolidated Statements of Cash Flows (continued) | | | | | | (Unaudited) | | | | | | | | | | | | | | | | | | | | | | | During Exploration | | | | | | | | Stage | | | | | | | | 1991 | | | | Three Months Ended | | Through | | | | March 31, | | March 31, | | | | 2012 | | 2011 | | 2012 | | Stock issued to acquire equipment from | | | | | | | | related party | | $ - | | $ - | | $ 11,850 | | | | | | | | | | Stock issued for mining contract | | $ - | | $ - | | $ 50,000 | | | | | | | | | | Stock issued for payment of accounts payable | | $ - | | $ - | | $ 29,250 | | | | | | | | | | Stock issued for payments on related party note | | | | | | | | payable | | $ - | | $ - | | $ 4,500 | | | | | | | | | | Fair value of warrants issued in private placement | | | | | | | classified as liabilities | | $ - | | $ - | | $ 1,795,587 | | | | | | | | | | Note proceeds allocated to conversion option at | | | | | | | | inception | | $ 1,368 | | $ - | | $ 123,031 | | | | | | | | | | Stock issued for deferred compensation | | $ - | | $ - | | $ 21,000 | |