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Consolidated Statements of Changes in Stockholders' Equity (Unaudited) - USD ($)
Common Stock [Member]
Additional Paid-in Capital [Member]
AOCI Attributable to Parent [Member]
Retained Earnings [Member]
Total
Beginning balance, value at Dec. 31, 2019 $ 68,942 $ 127,552,998 $ (753,520) $ (63,409,431) $ 63,458,989
Balance at beginning, shares at Dec. 31, 2019 68,941,311        
Stock option expense 1,400,000 1,400,000
Issuance of common stock pursuant to exercise of stock options - cashless $ 204 (204)
Issuance of common stock pursuant to exercise of stock options - Cashless, shares 204,028        
Issuance of common stock pursuant to exercise of stock options - cash $ 134 215,213 215,347
Issuance of common stock pursuant to exercise of stock options - Cash, shares 133,921        
Foreign currency translation (114,490) (114,490)
Net income 546,051 546,051
Ending balance, value at Mar. 31, 2020 $ 69,280 129,168,007 (868,010) (62,863,380) 65,505,897
Balance at ending, shares at Mar. 31, 2020 69,279,260        
Stock option expense   1,174,999   1,174,999
Issuance of common stock pursuant to exercise of stock options - cashless $ 106 (106)
Issuance of common stock pursuant to exercise of stock options - Cashless, shares 106,327        
Issuance of common stock pursuant to exercise of stock options - cash $ 177 489,140 489,317
Issuance of common stock pursuant to exercise of stock options - Cash, shares 176,914        
Foreign currency translation   (108,681) (108,681)
Net income 1,558,334 1,558,334
Ending balance, value at Jun. 30, 2020 $ 69,563 130,832,040 (976,691) (61,305,046) 68,619,866
Balance at ending, shares at Jun. 30, 2020 69,562,501        
Beginning balance, value at Dec. 31, 2020 $ 72,263 159,884,154 (202,142) (55,426,832) 104,327,443
Balance at beginning, shares at Dec. 31, 2020 72,262,829        
Stock option expense 3,575,001 3,575,001
Issuance of common stock pursuant to exercise of stock options - cashless $ 88 (88)
Issuance of common stock pursuant to exercise of stock options - Cashless, shares 88,312        
Issuance of common stock pursuant to exercise of stock options - cash $ 235 715,675 715,910
Issuance of common stock pursuant to exercise of stock options - Cash, shares 234,546        
Short swing payment  
Foreign currency translation (192,509) (192,509)
Net income 585,424 585,424
Ending balance, value at Mar. 31, 2021 $ 72,586 164,174,742 (394,651) (54,841,408) 109,011,269
Balance at ending, shares at Mar. 31, 2021 72,585,687        
Stock option expense 4,022,259 4,022,259
Issuance of common stock pursuant to exercise of stock options - cashless $ 316 (316)
Issuance of common stock pursuant to exercise of stock options - Cashless, shares 315,913        
Issuance of common stock pursuant to exercise of stock options - cash $ 435 1,798,672 1,799,107
Issuance of common stock pursuant to exercise of stock options - Cash, shares 434,986        
Foreign currency translation 276,995 276,995
Net income 3,960,344 3,960,344
Issuance of common stock from capital raise $ 1,134 67,768,252 67,769,386
Issuance of common stock from capital raise, shares 1,133,953        
Ending balance, value at Jun. 30, 2021 $ 74,471 $ 237,763,609 $ (117,656) $ (50,881,064) $ 186,839,360
Balance at ending, shares at Jun. 30, 2021 74,470,539