CHANGES TO STATEMENTS OF STOCKHOLDERS' EQUITY (Unaudited) - USD ($) | Total | Common Stock - Voting | Additional Paid-in Capital | Accumulated Deficit | Accumulated Other Comprehensive Income | Treasury Stock |
BALANCES at Dec. 31, 2017 | $ 116,902,978 | $ 35,132 | $ 312,783,195 | $ (195,991,478) | $ 76,129 | |
Shares, Outstanding at Dec. 31, 2017 | | 35,132,548 | | | | |
Exercise of options to purchase common stock | 53,862 | $ 7 | 53,855 | | | |
Exercise of options to purchase common stock, shares | | 6,696 | | | | |
Share-based compensation expense | 1,092,260 | | 1,092,260 | | | |
Foreign Currency Translation | 199,554 | | | | 199,554 | |
Net income (loss) | (3,520,937) | | | (3,520,937) | | |
BALANCES at Mar. 31, 2018 | 114,727,717 | $ 35,139 | 313,929,310 | (199,512,415) | 275,683 | |
Shares, Outstanding at Mar. 31, 2018 | | 35,139,244 | | | | |
BALANCES at Dec. 31, 2017 | 116,902,978 | $ 35,132 | 312,783,195 | (195,991,478) | 76,129 | |
Shares, Outstanding at Dec. 31, 2017 | | 35,132,548 | | | | |
Foreign Currency Translation | (55,958) | | | | | |
BALANCES at Sep. 30, 2018 | 116,804,693 | $ 35,524 | 320,115,324 | (203,110,100) | 20,171 | $ (256,226) |
Shares, Outstanding at Sep. 30, 2018 | | 35,524,330 | | | | 14,169 |
BALANCES at Mar. 31, 2018 | 114,727,717 | $ 35,139 | 313,929,310 | (199,512,415) | 275,683 | |
Shares, Outstanding at Mar. 31, 2018 | | 35,139,244 | | | | |
Exercise of options to purchase common stock | 945,428 | $ 104 | 945,324 | | | |
Exercise of options to purchase common stock, shares | | 103,693 | | | | |
Issuance of restricted stock units | (256,226) | $ 75 | (75) | | | $ (256,226) |
Issuance of restricted stock units, shares | | 74,583 | | | | 14,169 |
Share-based compensation expense | 1,301,774 | | 1,301,774 | | | |
Foreign Currency Translation | (201,187) | | | | (201,187) | |
Net income (loss) | (3,500,519) | | | (3,500,519) | | |
BALANCES at Jun. 30, 2018 | 113,016,986 | $ 35,317 | 316,176,333 | (203,012,934) | 74,496 | $ (256,226) |
Shares, Outstanding at Jun. 30, 2018 | | 35,317,520 | | | | 14,169 |
Exercise of options to purchase common stock | 2,072,594 | $ 207 | 2,072,387 | | | |
Exercise of options to purchase common stock, shares | | 206,810 | | | | |
Share-based compensation expense | 1,866,604 | | 1,866,604 | | | |
Foreign Currency Translation | (54,325) | | | | (54,325) | |
Net income (loss) | (97,166) | | | (97,166) | | |
BALANCES at Sep. 30, 2018 | 116,804,693 | $ 35,524 | 320,115,324 | (203,110,100) | 20,171 | $ (256,226) |
Shares, Outstanding at Sep. 30, 2018 | | 35,524,330 | | | | 14,169 |
BALANCES at Dec. 31, 2018 | 121,474,475 | $ 35,556 | 323,079,437 | (201,352,682) | (31,610) | $ (256,226) |
Shares, Outstanding at Dec. 31, 2018 | | 35,556,595 | | | | 14,169 |
Exercise of options to purchase common stock | 1,791,668 | $ 248 | 1,791,420 | | | |
Exercise of options to purchase common stock, shares | | 248,195 | | | | |
Issuance of restricted stock units | (673,774) | $ 62 | (673,836) | | | |
Issuance of restricted stock units, shares | | 61,532 | | | | |
Share-based compensation expense | 1,260,126 | | 1,260,126 | | | |
Foreign Currency Translation | 91,047 | | | | 91,047 | |
Net income (loss) | (3,422,000) | | | (3,422,000) | | |
BALANCES at Mar. 31, 2019 | 120,521,542 | $ 35,866 | 325,457,147 | (204,774,682) | 59,437 | $ (256,226) |
Shares, Outstanding at Mar. 31, 2019 | | 35,866,322 | | | | 14,169 |
BALANCES at Dec. 31, 2018 | 121,474,475 | $ 35,556 | 323,079,437 | (201,352,682) | (31,610) | $ (256,226) |
Shares, Outstanding at Dec. 31, 2018 | | 35,556,595 | | | | 14,169 |
Foreign Currency Translation | (143,941) | | | | | |
BALANCES at Sep. 30, 2019 | 123,773,968 | $ 36,100 | 331,538,514 | (207,368,869) | (175,551) | $ (256,226) |
Shares, Outstanding at Sep. 30, 2019 | | 36,100,662 | | | | 14,169 |
BALANCES at Mar. 31, 2019 | 120,521,542 | $ 35,866 | 325,457,147 | (204,774,682) | 59,437 | $ (256,226) |
Shares, Outstanding at Mar. 31, 2019 | | 35,866,322 | | | | 14,169 |
Exercise of options to purchase common stock | 1,983,879 | $ 194 | 1,983,685 | | | |
Exercise of options to purchase common stock, shares | | 194,497 | | | | |
Issuance of restricted stock units | (579,178) | $ 29 | (579,207) | | | |
Issuance of restricted stock units, shares | | 29,126 | | | | |
Share-based compensation expense | 1,480,882 | | 1,480,882 | | | |
Foreign Currency Translation | (153,321) | | | | (153,321) | |
Net income (loss) | (5,661,350) | | | (5,661,350) | | |
BALANCES at Jun. 30, 2019 | 117,592,454 | $ 36,089 | 328,342,507 | (210,436,032) | (93,884) | $ (256,226) |
Shares, Outstanding at Jun. 30, 2019 | | 36,089,945 | | | | 14,169 |
Exercise of options to purchase common stock | 66,370 | $ 11 | 66,359 | | | |
Exercise of options to purchase common stock, shares | | 10,717 | | | | |
Share-based compensation expense | 3,129,648 | | 3,129,648 | | | |
Foreign Currency Translation | (81,667) | | | | (81,667) | |
Net income (loss) | 3,067,163 | | | 3,067,163 | | |
BALANCES at Sep. 30, 2019 | $ 123,773,968 | $ 36,100 | $ 331,538,514 | $ (207,368,869) | $ (175,551) | $ (256,226) |
Shares, Outstanding at Sep. 30, 2019 | | 36,100,662 | | | | 14,169 |