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Condensed Consolidated Statements of 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, 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        
Fair value of stock options issued in payment of accrued compensation 215,000 $ 0 215,000 0 0 215,000
Fair value of stock options issued for board service 53,000 0 53,000 0 0 53,000
Shares issued for services ($1.03 per share) 2,000 $ 0 2,000 0 0 2,000
Shares issued for services ($1.03 per share) (in shares)   2,500        
Share Based Compensation 80,000 $ 0 80,000 0 0 80,000
Net loss (1,963,000) 0 0 (1,963,000) 0 (1,963,000)
Balance at the end of the year at Mar. 31, 2020 7,610,000 $ 3,000 77,560,000 (69,953,000) 3,000 7,613,000
Balances (in shares) at Mar. 31, 2020   26,709,761        
Balance at the beginning 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        
Shares issued for services ($1.90 per share) 2,000   2,000     2,000
Shares issued for services ($1.90 per share) (in shares)   1,250        
Shares issued for services ($3.80 per share) 36,000   36,000     36,000
Shares issued for services ($3.80 per share) (in shares)   9,375        
Shares issued for services ($1.21 per share) 4,000   4,000     4,000
Shares issued for services ($1.21 per share) (in shares)   3,000        
Shares issued upon exercise of warrants ($1.80 per share) 67,000 $ 0 67,000 0 0 67,000
Shares issued upon exercise of warrants ($1.80 per share) (in shares)   37,500        
Fair value of stock options issued in payment of accrued compensation 217,000 $ 0 217,000 0 0 217,000
Fair value of stock options issued in payment of accrued compensation (in shares)   64,439        
Fair value of stock options issued for board service 210,000   210,000     210,000
Share Based Compensation 410,000 $ 0 410,000 0 0 410,000
Shares issued through the use of At-The Market issuance 4,469,000 $ 0 4,469,000 0 0 4,469,000
Shares issued through the use of At-The Market issuance (in shares)   940,748        
Proceeds receivable from At-The Market issuance (1,076,000)   (1,076,000)     (1,076,000)
Shares issued for services ($2.33 per share) 9,000   9,000     9,000
Shares issued for services ($2.33 per share) (in Shares)   3,750        
Net loss (2,021,000) $ 0 0 (2,021,000) 0 (2,021,000)
Balance at the end of the year at Mar. 31, 2021 $ 11,867,000 $ 3,000 $ 88,759,000 $ (76,895,000) $ 1,000 $ 11,868,000
Balances (in shares) at Mar. 31, 2021   31,137,498