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Consolidated Statements of Stockholders' Equity - USD ($)
Stockholders' Equity
Common Stock
Additional Paid-In Capital
Accumulated Deficit
Noncontrolling Interest
Total
Balance at the beginning of the year at Dec. 31, 2018 $ 16,909,000 $ 3,000 $ 76,417,000 $ (59,511,000)   $ 16,909,000
Balances (in shares) at Dec. 31, 2018   26,697,261        
Shares issued for services ($1.44 per share) 11,000   11,000     11,000
Shares issued for services ($1.44 per share) (in shares)   7,500        
Fair value of stock options issued in payment of accrued compensation 100,000   100,000     100,000
Shares issued for services ($1.03 per share) 3,000   3,000     3,000
Shares issued for services ($1.03 per share) (in shares)   2,500        
Adjustments To Additional Paid In Capital, Share-based Payment Arrangement, Option, Increase for Cost Recognition, Two 137,000   137,000     137,000
Share Based Compensation 542,000   542,000     542,000
Fair Value of stock award         $ 6,000 6,000
Net loss (8,479,000)     (8,479,000) (3,000) (8,482,000)
Balance at the end of the year at Dec. 31, 2019 9,223,000 $ 3,000 77,210,000 (67,990,000) 3,000 9,226,000
Balances (in shares) at Dec. 31, 2019   26,707,261        
Exercised Options ($1.90 per share) 33,000   33,000 0 0 $ 33,000
Exercised Options ($1.90 per share) (in shares)   17,500       117,000
Exercised Options ($.89 per share) 17,000   17,000 0 0 $ 17,000
Exercised Options ($.89 per share) (in shares)   19,500        
Exercised Options ($1.00 per share) 65,000   65,000 0 0 65,000
Exercised Options ($1.00 per share) (in shares)   65,000        
Secondary offering ($2 per share) 6,053,000   6,053,000 0 0 6,053,000
Secondary offering ($2 per share) (in shares)   3,241,925        
Shares issued for services ($2.33 per share) (in shares)   3,750        
Shares issued for services ($2.33 per share) 9,000   9,000 0 0 9,000
Exercised Options ($0.72 per share) 11,000   11,000 0 0 11,000
Exercised Options ($0.72 per share) (in shares)   15,000        
Fair value of stock options issued in payment of accrued compensation 407,000   407,000 0 0 407,000
Shares issued for services ($1.03 per share) 8,000   8,000 0 0 8,000
Shares issued for services ($1.03 per share) (in shares)   7,500        
Adjustments To Additional Paid In Capital, Share-based Payment Arrangement, Option, Increase for Cost Recognition, Two 334,000   334,000 0 0 334,000
Share Based Compensation 264,000 $ 0 264,000 0 0 264,000
Net loss (6,884,000)     (6,884,000) (2,000) (6,886,000)
Balance at the end of the year at Dec. 31, 2020 $ 9,540,000 $ 3,000 $ 84,411,000 $ (74,874,000) $ 1,000 $ 9,541,000
Balances (in shares) at Dec. 31, 2020   30,077,436