| CONDENSED CONSOLIDATED STATEMENT OF STOCKHOLDERS' EQUITY (Unaudited) - USD ($)
 | Series A Preferred Stock | Series B Preferred Stock | Common Stock | Additional Paid-In Capital | Accumulated Deficit | Total | 
| Beginning Balance, Shares at Dec. 31, 2017 | 185 | 52 | 133,695,111 |  |  |  | 
| Beginning Balance, Amount at Dec. 31, 2017 | $ 1,340,566 | $ 362,059 | $ 133,695 | $ 127,421,402 | $ (119,724,656) | $ 9,533,066 | 
| Cumulative effect of a change in accounting principle related to ASC 606, net of tax at Mar. 31, 2018 |  |  |  |  | (430,000) | (430,000) | 
| Shares issued directors, shares |  |  | 294,808 |  |  |  | 
| Shares issued to directors, value |  |  | $ 294 | 35,706 |  | 36,000 | 
| Stock-based compensation expense related to employee stock options |  |  |  | 1,531 |  | 1,531 | 
| Net loss |  |  |  |  | (1,184,166) | (1,184,166) | 
| Ending Balance, Shares at Mar. 31, 2018 | 185 | 52 | 133,989,919 |  |  |  | 
| Ending Balance, Amount at Mar. 31, 2018 | $ 1,340,566 | $ 362,059 | $ 133,989 | 127,458,639 | (121,338,822) | 7,956,431 | 
| Beginning Balance, Shares at Dec. 31, 2017 | 185 | 52 | 133,695,111 |  |  |  | 
| Beginning Balance, Amount at Dec. 31, 2017 | $ 1,340,566 | $ 362,059 | $ 133,695 | 127,421,402 | (119,724,656) | 9,533,066 | 
| Net loss |  |  |  |  |  | (2,671,756) | 
| Ending Balance, Shares at Sep. 30, 2018 | 185 | 52 | 134,536,907 |  |  |  | 
| Ending Balance, Amount at Sep. 30, 2018 | $ 1,340,566 | $ 362,059 | $ 134,536 | 127,533,151 | (122,826,412) | 6,543,900 | 
| Beginning Balance, Shares at Mar. 31, 2018 | 185 | 52 | 133,989,919 |  |  |  | 
| Beginning Balance, Amount at Mar. 31, 2018 | $ 1,340,566 | $ 362,059 | $ 133,989 | 127,458,639 | (121,338,822) | 7,956,431 | 
| Stock-based compensation expense related to employee stock options |  |  |  | 1,530 |  | 1,530 | 
| Net loss |  |  |  |  | (206,582) | (206,582) | 
| Ending Balance, Shares at Jun. 30, 2018 | 185 | 52 | 133,989,919 |  |  |  | 
| Ending Balance, Amount at Jun. 30, 2018 | $ 1,340,566 | $ 362,059 | $ 133,989 | 127,460,169 | (121,545,404) | 7,751,379 | 
| Shares issued directors, shares |  |  | 546,988 |  |  |  | 
| Shares issued to directors, value |  |  | $ 547 | 71,453 |  | 72,000 | 
| Stock-based compensation expense related to employee stock options |  |  |  | 1,529 |  | 1,529 | 
| Net loss |  |  |  |  | (1,281,008) | (1,281,008) | 
| Ending Balance, Shares at Sep. 30, 2018 | 185 | 52 | 134,536,907 |  |  |  | 
| Ending Balance, Amount at Sep. 30, 2018 | $ 1,340,566 | $ 362,059 | $ 134,536 | 127,533,151 | (122,826,412) | 6,543,900 | 
| Beginning Balance, Shares at Dec. 31, 2018 | 185 | 52 | 134,793,211 |  |  |  | 
| Beginning Balance, Amount at Dec. 31, 2018 | $ 1,340,566 | $ 362,059 | $ 134,792 | 127,570,709 | (123,171,406) | 6,236,720 | 
| Shares issued directors, shares |  |  | 292,308 |  |  |  | 
| Shares issued to directors, value |  |  | $ 294 | 35,708 |  | 36,002 | 
| Stock-based compensation expense related to employee stock options |  |  |  | 1,815 |  | 1,815 | 
| Net loss |  |  |  |  | (845,604) | (845,604) | 
| Ending Balance, Shares at Mar. 31, 2019 | 185 | 52 | 135,085,519 |  |  |  | 
| Ending Balance, Amount at Mar. 31, 2019 | $ 1,340,566 | $ 362,059 | $ 135,086 | 127,608,232 | (124,017,010) | 5,428,933 | 
| Beginning Balance, Shares at Dec. 31, 2018 | 185 | 52 | 134,793,211 |  |  |  | 
| Beginning Balance, Amount at Dec. 31, 2018 | $ 1,340,566 | $ 362,059 | $ 134,792 | 127,570,709 | (123,171,406) | 6,236,720 | 
| Net loss |  |  |  |  |  | (2,118,048) | 
| Ending Balance, Shares at Sep. 30, 2019 | 185 | 52 | 135,633,350 |  |  |  | 
| Ending Balance, Amount at Sep. 30, 2019 | $ 1,340,566 | $ 362,059 | $ 135,632 | 127,680,315 | (125,289,454) | 4,229,118 | 
| Beginning Balance, Shares at Mar. 31, 2019 | 185 | 52 | 135,085,519 |  |  |  | 
| Beginning Balance, Amount at Mar. 31, 2019 | $ 1,340,566 | $ 362,059 | $ 135,086 | 127,608,232 | (124,017,010) | 5,428,933 | 
| Shares issued directors, shares |  |  | 246,432 |  |  |  | 
| Shares issued to directors, value |  |  | $ 245 | 35,753 |  | 35,998 | 
| Stock-based compensation expense related to employee stock options |  |  |  | 1,816 |  | 1,816 | 
| Net loss |  |  |  |  | (518,575) | (518,575) | 
| Ending Balance, Shares at Jun. 30, 2019 | 185 | 52 | 135,331,951 |  |  |  | 
| Ending Balance, Amount at Jun. 30, 2019 | $ 1,340,566 | $ 362,059 | $ 135,331 | 127,645,801 | (124,535,585) | 4,948,172 | 
| Shares issued directors, shares |  |  | 301,399 |  |  |  | 
| Shares issued to directors, value |  |  | $ 301 | 32,699 |  | 33,000 | 
| Stock-based compensation expense related to employee stock options |  |  |  | 1,815 |  | 1,815 | 
| Net loss |  |  |  |  | (753,869) | (753,869) | 
| Ending Balance, Shares at Sep. 30, 2019 | 185 | 52 | 135,633,350 |  |  |  | 
| Ending Balance, Amount at Sep. 30, 2019 | $ 1,340,566 | $ 362,059 | $ 135,632 | $ 127,680,315 | $ (125,289,454) | $ 4,229,118 |