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Consolidated Statements of Changes in Stockholders' Equity - USD ($) | Preferred Stock | Common Stock | Additional Paid-in Capital | Notes Receivable for Stock Sales | Accumulated Deficit | Total
--- | --- | --- | --- | --- | --- | ---
Beginning Balance - Shares at Dec. 31, 2013 | 2,678,909 | 63,156,206 |  |  |  |
Beginning Balance - Amount at Dec. 31, 2013 | $ 26,788 | $ 631,562 | $ 32,030,249 | $ 0 | $ (21,686,744) | $ 11,001,855
Issuance of common stock and warrants for cash, net of offering costs, Shares |  | 2,400,071 |  |  |  |
Issuance of common stock and warrants for cash, net of offering costs, Amount |  | $ 24,001 | 3,046,133 |  |  | 3,070,134
Issuance of common stock to directors for services, Shares |  | 83,334 |  |  |  |
Issuance of common stock to directors for services, Amount |  | $ 833 | 149,167 |  |  | 150,000
Issuance of common stock and warrants for notes payable, Shares |  | 235,717 |  |  |  |
Issuance of common stock and warrants for notes payable, Amount |  | $ 2,357 | 327,643 |  |  | 330,000
Issuance of common stock to consultant for services and settlement agreement, Shares |  | 24,000 |  |  |  |
Issuance of common stock to consultant for services and settlement agreement, Amount |  | $ 240 | 38,760 |  |  | 39,000
Issuance of common stock for cashless exercise of warrants, Shares |  | 3,125 |  |  |  |
Issuance of common stock for cashless exercise of warrants, Amount |  | $ 31 | (31) |  |  | 0
Stock issued for notes receivable, Shares |  | 125,000 |  |  |  |
Stock issued for notes receivable, Amount |  | $ 1,250 | 148,750 | (150,000) |  |
Forgiveness of note receivable |  |  |  |  |  | 0
Cash received on notes receivable |  |  |  |  |  | 0
Net loss |  |  |  |  | (1,595,455) | (1,595,455)
Ending Balance, Shares at Dec. 31, 2014 | 2,678,909 | 66,027,453 |  |  |  |
Ending Balance, Amount at Dec. 31, 2014 | $ 26,788 | $ 660,274 | 35,740,671 | (150,000) | (23,282,199) | 12,995,534
Issuance of common stock to directors for services, Shares |  | 183,825 |  |  |  |
Issuance of common stock to directors for services, Amount |  | $ 1,838 | 123,162 |  |  | 125,000
Issuance of common stock to consultant for services and settlement agreement, Shares |  | 105,000 |  |  |  |
Issuance of common stock to consultant for services and settlement agreement, Amount |  | $ 1,050 | 56,900 |  |  | 57,950
Forgiveness of note receivable |  |  | (30,000) | 30,000 |  | 0
Cash received on notes receivable |  |  |  | 120,000 |  | 120,000
Net loss |  |  |  |  | (838,531) | (838,531)
Ending Balance, Shares at Dec. 31, 2015 | 26,789,909 | 66,316,278 |  |  |  |
Ending Balance, Amount at Dec. 31, 2015 | $ 26,788 | $ 663,162 | $ 35,890,733 | $ 0 | $ (24,120,730) | $ 12,459,953

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