Consolidated Statements of Stockholders' Equity (Unaudited) - USD ($) | Total | Common Stock | Additional Paid-In Capital | Retained Earnings (Accumulated Deficit) | Accumulated other comprehensive loss |
Balance, shares at Dec. 31, 2019 | | 29,829,916 | | | |
Balance, amount at Dec. 31, 2019 | $ 19,196,000 | $ 3,000 | $ 31,923,000 | $ (12,730,000) | $ 0 |
Sale of common stock and warrants at $6.00 per share in public offering, net of issuance costs, shares | | 2,066,667 | | | |
Sale of common stock and warrants at $6.00 per share in public offering, net of issuance costs, amount | 11,667,000 | $ 0 | 11,667,000 | 0 | 0 |
Common shares issued upon exercise of warrants at $3.00 per share, net of issuance costs, shares | | 150,504 | | | |
Common shares issued upon exercise of warrants at $3.00 per share, net of issuance costs, amount | 440,000 | $ 0 | 440,000 | 0 | 0 |
Common shares issued upon exercise of warrants at $5.00 per share, net of issuance costs, shares | | 1,851,003 | | | |
Common shares issued upon exercise of warrants at $5.00 per share, net of issuance costs, amount | 8,868,000 | $ 0 | 8,868,000 | 0 | 0 |
Common shares issued upon exercise of warrants at $6.50 per share, shares | | 83,693 | | | |
Common shares issued upon exercise of warrants at $6.50 per share, amount | 544,000 | $ 0 | 544,000 | 0 | 0 |
Common shares issued upon exercise of stock options, shares | | 293,250 | | | |
Common shares issued upon exercise of stock options, amount | 515,000 | $ 0 | 515,000 | 0 | 0 |
Common shares issued upon vesting of restricted stock units, shares | | 86,558 | | | |
Common shares issued upon vesting of restricted stock units, amount | 0 | $ 0 | 0 | 0 | 0 |
Share-based compensation expense | 1,016,000 | 0 | 1,016,000 | 0 | 0 |
Net unrealized gain on short-term investments | 0 | 0 | 0 | 0 | 0 |
Net loss for the period | (5,162,000) | $ 0 | 0 | (5,162,000) | 0 |
Common shares issued for services, amount | 0 | | | | |
Balance, shares at Jun. 30, 2020 | | 34,361,591 | | | |
Balance, amount at Jun. 30, 2020 | 37,084,000 | $ 3,000 | 54,973,000 | (17,892,000) | 0 |
Balance, shares at Mar. 31, 2020 | | 30,073,724 | | | |
Balance, amount at Mar. 31, 2020 | 18,118,000 | $ 3,000 | 33,191,000 | (15,076,000) | 0 |
Sale of common stock and warrants at $6.00 per share in public offering, net of issuance costs, shares | | 2,066,667 | | | |
Sale of common stock and warrants at $6.00 per share in public offering, net of issuance costs, amount | 11,667,000 | $ 0 | 11,667,000 | 0 | 0 |
Common shares issued upon exercise of warrants at $3.00 per share, net of issuance costs, shares | | 138,721 | | | |
Common shares issued upon exercise of warrants at $3.00 per share, net of issuance costs, amount | 405,000 | $ 0 | 405,000 | 0 | 0 |
Common shares issued upon exercise of warrants at $5.00 per share, net of issuance costs, shares | | 1,731,603 | | | |
Common shares issued upon exercise of warrants at $5.00 per share, net of issuance costs, amount | 8,271,000 | $ 0 | 8,271,000 | 0 | 0 |
Common shares issued upon exercise of warrants at $6.50 per share, shares | | 83,693 | | | |
Common shares issued upon exercise of warrants at $6.50 per share, amount | 544,000 | $ 0 | 544,000 | 0 | 0 |
Common shares issued upon exercise of stock options, shares | | 180,625 | | | |
Common shares issued upon exercise of stock options, amount | 346,000 | $ 0 | 346,000 | 0 | 0 |
Common shares issued upon vesting of restricted stock units, shares | | 86,558 | | | |
Common shares issued upon vesting of restricted stock units, amount | 0 | $ 0 | 0 | 0 | 0 |
Share-based compensation expense | 549,000 | 0 | 549,000 | 0 | 0 |
Net unrealized gain on short-term investments | 0 | 0 | 0 | 0 | 0 |
Net loss for the period | (2,816,000) | $ 0 | 0 | (2,816,000) | 0 |
Balance, shares at Jun. 30, 2020 | | 34,361,591 | | | |
Balance, amount at Jun. 30, 2020 | 37,084,000 | $ 3,000 | 54,973,000 | (17,892,000) | 0 |
Balance, shares at Dec. 31, 2020 | | 37,554,162 | | | |
Balance, amount at Dec. 31, 2020 | 46,414,000 | $ 4,000 | 71,705,000 | (25,310,000) | 15,000 |
Common shares issued upon exercise of warrants at $6.50 per share, shares | | 1,661,320 | | | |
Common shares issued upon exercise of warrants at $6.50 per share, amount | 10,799,000 | $ 0 | 10,799,000 | 0 | 0 |
Common shares issued upon exercise of stock options, shares | | 157,066 | | | |
Common shares issued upon exercise of stock options, amount | 278,000 | $ 0 | 278,000 | 0 | 0 |
Common shares issued upon vesting of restricted stock units, shares | | 342,274 | | | |
Common shares issued upon vesting of restricted stock units, amount | 0 | $ 0 | 0 | 0 | 0 |
Share-based compensation expense | 3,007,000 | 0 | 3,007,000 | 0 | 0 |
Net unrealized gain on short-term investments | (2,000) | | | | |
Net loss for the period | (13,228,000) | $ 0 | 0 | (13,228,000) | 0 |
Common shares issued upon exercise of warrants at $8.125 per share, shares | | 153,692 | | | |
Common shares issued upon exercise of warrants at $8.125 per share, amount | 1,249,000 | $ 0 | 1,249,000 | 0 | 0 |
Common shares issued for services, shares | | 42,876 | | | |
Common shares issued for services, amount | 239,000 | $ 0 | 239,000 | 0 | 0 |
Net unrealized loss on short-term investments | (2,000) | $ 0 | 0 | 0 | (2,000) |
Balance, shares at Jun. 30, 2021 | | 39,911,390 | | | |
Balance, amount at Jun. 30, 2021 | 48,756,000 | $ 4,000 | 87,277,000 | (38,538,000) | 13,000 |
Balance, shares at Mar. 31, 2021 | | 37,711,698 | | | |
Balance, amount at Mar. 31, 2021 | 42,059,000 | $ 4,000 | 72,777,000 | (30,739,000) | 17,000 |
Common shares issued upon exercise of warrants at $6.50 per share, shares | | 1,661,320 | | | |
Common shares issued upon exercise of warrants at $6.50 per share, amount | 10,799,000 | $ 0 | 10,799,000 | 0 | 0 |
Common shares issued upon exercise of stock options, shares | | 82,066 | | | |
Common shares issued upon exercise of stock options, amount | 165,000 | $ 0 | 165,000 | 0 | 0 |
Common shares issued upon vesting of restricted stock units, shares | | 277,614 | | | |
Common shares issued upon vesting of restricted stock units, amount | 0 | $ 0 | 0 | 0 | 0 |
Share-based compensation expense | 2,148,000 | 0 | 2,148,000 | 0 | 0 |
Net unrealized gain on short-term investments | (4,000) | | | | |
Net loss for the period | (7,799,000) | $ 0 | 0 | (7,799,000) | 0 |
Common shares issued upon exercise of warrants at $8.125 per share, shares | | 153,692 | | | |
Common shares issued upon exercise of warrants at $8.125 per share, amount | 1,249,000 | $ 0 | 1,249,000 | 0 | 0 |
Common shares issued for services, shares | | 25,000 | | | |
Common shares issued for services, amount | 139,000 | $ 0 | 139,000 | 0 | 0 |
Net unrealized loss on short-term investments | (4,000) | $ 0 | 0 | 0 | (4,000) |
Balance, shares at Jun. 30, 2021 | | 39,911,390 | | | |
Balance, amount at Jun. 30, 2021 | $ 48,756,000 | $ 4,000 | $ 87,277,000 | $ (38,538,000) | $ 13,000 |