Consolidated Statements of Stockholders' Equity (Unaudited) - USD ($) | Common Stock [Member] | Additional Paid-in Capital [Member] | Retained Earnings [Member] | Total |
Beginning balance, value at Dec. 31, 2019 | $ 1,000 | $ 79,523,500 | $ (79,934,400) | $ (409,900) |
Beginning balance, shares at Dec. 31, 2019 | 9,834,866 | | | |
Shares issued for settlement of accrued expenses | | 39,600 | | 39,600 |
Shares issued for settlement of accrued expenses, shares | 120,000 | | | |
Proceeds from rights offering, shares | | | | |
Contributed services | | 56,200 | | 56,200 |
Net income | | | 109,100 | 109,100 |
Ending balance, value at Mar. 31, 2020 | $ 1,000 | 79,619,300 | (79,825,300) | (205,000) |
Ending balance, shares at Mar. 31, 2020 | 9,954,866 | | | |
Beginning balance, value at Dec. 31, 2019 | $ 1,000 | 79,523,500 | (79,934,400) | (409,900) |
Beginning balance, shares at Dec. 31, 2019 | 9,834,866 | | | |
Shares issued for settlement of accrued expenses, shares | 120,000 | | | |
Net income | | | | 431,800 |
Ending balance, value at Jun. 30, 2020 | $ 1,100 | 80,036,100 | (79,502,600) | 534,600 |
Ending balance, shares at Jun. 30, 2020 | 11,555,504 | | | |
Beginning balance, value at Mar. 31, 2020 | $ 1,000 | 79,619,300 | (79,825,300) | (205,000) |
Beginning balance, shares at Mar. 31, 2020 | 9,954,866 | | | |
Shares issued for settlement of accrued expenses, shares | 0 | | | |
Proceeds from rights offering | $ 100 | 480,000 | | 480,100 |
Proceeds from rights offering, shares | 1,600,638 | | | |
Issuance cost for rights offering | | (119,400) | | (119,400) |
Contributed services | | 56,200 | | 56,200 |
Net income | | | 322,700 | 322,700 |
Ending balance, value at Jun. 30, 2020 | $ 1,100 | 80,036,100 | (79,502,600) | 534,600 |
Ending balance, shares at Jun. 30, 2020 | 11,555,504 | | | |
Beginning balance, value at Dec. 31, 2020 | $ 1,900 | 82,155,200 | (79,240,700) | 2,916,400 |
Beginning balance, shares at Dec. 31, 2020 | 18,850,675 | | | |
Net income | | | 379,200 | 379,200 |
Ending balance, value at Mar. 31, 2021 | $ 1,900 | 82,155,200 | (78,861,500) | 3,295,600 |
Ending balance, shares at Mar. 31, 2021 | 18,850,675 | | | |
Beginning balance, value at Dec. 31, 2020 | $ 1,900 | 82,155,200 | (79,240,700) | 2,916,400 |
Beginning balance, shares at Dec. 31, 2020 | 18,850,675 | | | |
Shares issued for settlement of accrued expenses, shares | 0 | | | |
Net income | | | | 527,900 |
Ending balance, value at Jun. 30, 2021 | $ 1,900 | 82,155,200 | (78,712,800) | 3,444,300 |
Ending balance, shares at Jun. 30, 2021 | 18,850,675 | | | |
Beginning balance, value at Mar. 31, 2021 | $ 1,900 | 82,155,200 | (78,861,500) | 3,295,600 |
Beginning balance, shares at Mar. 31, 2021 | 18,850,675 | | | |
Shares issued for settlement of accrued expenses, shares | 0 | | | |
Net income | | | 148,700 | 148,700 |
Ending balance, value at Jun. 30, 2021 | $ 1,900 | $ 82,155,200 | $ (78,712,800) | $ 3,444,300 |
Ending balance, shares at Jun. 30, 2021 | 18,850,675 | | | |