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CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY - USD ($)
Total
Common Stock
Additional Paid-In Capital
Accumulated other comprehensive loss
Retained Earnings (Accumulated Deficit)
Balance, shares at Dec. 31, 2020   8,876,515      
Balance, amount at Dec. 31, 2020 $ 40,551,723 $ 8,876 $ 100,504,741 $ (104,615) $ (59,857,279)
Issuance of common stock - options exercises, shares   2,500      
Issuance of common stock - options exercises, amount 10,250 $ 2 10,248 0 0
Issuance of common stock - restricted, amount (140,894) $ 92 (140,986) 0 0
Issuance of common stock - restricted, shares   91,650      
Issuance of common stock through at-the-market offering program, net of issuance costs of $333,305, amount 1,088,398 $ 101 1,088,297 0 0
Issuance of common stock through at-the-market offering program, shares   100,687      
Stock compensation expense - restricted 157,107 $ 0 157,107 0 0
Stock compensation expense - non-qualified stock options 25,735 0 25,735 0 0
Foreign currency translation - (loss) (54,949) 0 0 (54,949) 0
Net (loss) income 585,424 0 0 0 585,424
Balance, amount at Mar. 31, 2021 42,222,794 $ 9,071 101,645,142 (159,564) $ (59,271,855)
Balance, shares at Mar. 31, 2021   9,071,352      
Balance, shares at Dec. 31, 2021   8,842,026      
Balance, amount at Dec. 31, 2021 41,675,995 $ 8,842 101,424,922 (59,516,183)  
Foreign currency translation - (loss) (4,835) 0 0 (4,835)  
Net (loss) income (392,897) 0 0 0  
Stock compensation expense - restricted 179,741 0 179,741 0  
Common stock repurchased, amount (818,211) $ (197) (818,014) 0  
Issuance of common stock - restricted, shares   50,345      
Issuance of common stock - restricted, amount (49,224) $ 51 (49,275) 0  
Common stock repurchased, shares   196,586      
Issuance of common stock warrants 108,000 $ 0 108,000 0  
Balance, amount at Mar. 31, 2022 $ 40,698,569 $ 8,696 $ 100,845,374 $ (246,421)  
Balance, shares at Mar. 31, 2022   8,695,785