Changes to Statements of Stockholders' Equity (Unaudited) - USD ($) | Common Stock [Member] | Additional Paid-in Capital [Member] | Retained Earnings [Member] | AOCI Attributable to Parent [Member] | Treasury Stock [Member] | Total |
BALANCES (in shares) at Dec. 31, 2018 | 35,556,595 | | | | 14,169 | |
BALANCES at Dec. 31, 2018 | $ 35,556 | $ 323,079,437 | $ (201,352,682) | $ (31,610) | $ (256,226) | $ 121,474,475 |
Exercise of options to purchase common stock (in shares) | 248,195 | | | | 0 | |
Exercise of options to purchase common stock | $ 248 | 1,791,420 | 0 | 0 | $ 0 | 1,791,668 |
Issuance of restricted stock units (in shares) | 61,532 | | | | 0 | |
Issuance of restricted stock units | $ 62 | (673,836) | 0 | 0 | $ 0 | (673,774) |
Share-based compensation expense | 0 | 1,260,126 | 0 | 0 | 0 | 1,260,126 |
Foreign Currency Translation | 0 | 0 | 0 | 91,047 | 0 | 91,047 |
Net loss | $ 0 | 0 | (3,422,000) | 0 | $ 0 | (3,422,000) |
BALANCES (in shares) at Mar. 31, 2019 | 35,866,322 | | | | 14,169 | |
BALANCES at Mar. 31, 2019 | $ 35,866 | 325,457,147 | (204,774,682) | 59,437 | $ (256,226) | 120,521,542 |
BALANCES (in shares) at Dec. 31, 2018 | 35,556,595 | | | | 14,169 | |
BALANCES at Dec. 31, 2018 | $ 35,556 | 323,079,437 | (201,352,682) | (31,610) | $ (256,226) | 121,474,475 |
Foreign Currency Translation | | | | | | (62,274) |
Net loss | | | | | | (9,083,350) |
BALANCES (in shares) at Jun. 30, 2019 | 36,089,945 | | | | 14,169 | |
BALANCES at Jun. 30, 2019 | $ 36,089 | 328,342,507 | (210,436,032) | (93,884) | $ (256,226) | 117,592,454 |
BALANCES (in shares) at Mar. 31, 2019 | 35,866,322 | | | | 14,169 | |
BALANCES at Mar. 31, 2019 | $ 35,866 | 325,457,147 | (204,774,682) | 59,437 | $ (256,226) | 120,521,542 |
Exercise of options to purchase common stock (in shares) | 194,497 | | | | 0 | |
Exercise of options to purchase common stock | $ 194 | 1,983,685 | 0 | 0 | $ 0 | 1,983,879 |
Issuance of restricted stock units (in shares) | 29,126 | | | | 0 | |
Issuance of restricted stock units | $ 29 | (579,207) | 0 | 0 | $ 0 | (579,178) |
Share-based compensation expense | 0 | 1,480,882 | 0 | 0 | 0 | 1,480,882 |
Foreign Currency Translation | 0 | 0 | 0 | (153,321) | 0 | (153,321) |
Net loss | $ 0 | 0 | (5,661,350) | 0 | $ 0 | (5,661,350) |
BALANCES (in shares) at Jun. 30, 2019 | 36,089,945 | | | | 14,169 | |
BALANCES at Jun. 30, 2019 | $ 36,089 | 328,342,507 | (210,436,032) | (93,884) | $ (256,226) | 117,592,454 |
BALANCES (in shares) at Dec. 31, 2019 | 36,162,433 | | | | 14,169 | |
BALANCES at Dec. 31, 2019 | $ 36,162 | 334,299,172 | (202,735,417) | (79,170) | $ (256,226) | 131,264,521 |
Exercise of options to purchase common stock (in shares) | 44,156 | | | | 0 | |
Exercise of options to purchase common stock | $ 44 | 402,512 | 0 | 0 | $ 0 | 402,556 |
Issuance of restricted stock units (in shares) | 64,823 | | | | 0 | |
Issuance of restricted stock units | $ 65 | (644,664) | 0 | 0 | $ 0 | (644,599) |
Share-based compensation expense | $ 0 | 2,241,847 | 0 | 0 | $ 0 | 2,241,847 |
Shares issued in primary offering (in shares) | 3,999,999 | | | | 0 | |
Shares issued in primary offering | $ 4,000 | 252,058,254 | 0 | 0 | $ 0 | 252,062,254 |
Foreign Currency Translation | 0 | 0 | 0 | 58,955 | 0 | 58,955 |
Net loss | $ 0 | 0 | (3,590,233) | 0 | $ 0 | (3,590,233) |
BALANCES (in shares) at Mar. 31, 2020 | 40,271,411 | | | | 14,169 | |
BALANCES at Mar. 31, 2020 | $ 40,271 | 588,357,121 | (206,325,650) | (20,215) | $ (256,226) | 381,795,301 |
BALANCES (in shares) at Dec. 31, 2019 | 36,162,433 | | | | 14,169 | |
BALANCES at Dec. 31, 2019 | $ 36,162 | 334,299,172 | (202,735,417) | (79,170) | $ (256,226) | 131,264,521 |
Foreign Currency Translation | | | | | | (327,611) |
Net loss | | | | | | (3,437,138) |
BALANCES (in shares) at Jun. 30, 2020 | 40,480,225 | | | | 14,169 | |
BALANCES at Jun. 30, 2020 | $ 40,480 | 591,386,109 | (206,172,555) | (406,781) | $ (256,226) | 384,591,027 |
BALANCES (in shares) at Mar. 31, 2020 | 40,271,411 | | | | 14,169 | |
BALANCES at Mar. 31, 2020 | $ 40,271 | 588,357,121 | (206,325,650) | (20,215) | $ (256,226) | 381,795,301 |
Exercise of options to purchase common stock (in shares) | 199,796 | | | | 0 | |
Exercise of options to purchase common stock | $ 200 | 1,687,780 | 0 | 0 | $ 0 | 1,687,980 |
Issuance of restricted stock units (in shares) | 9,018 | | | | 0 | |
Issuance of restricted stock units | $ 9 | (991,706) | 0 | 0 | $ 0 | (991,697) |
Share-based compensation expense | 0 | 2,332,915 | 0 | 0 | 0 | 2,332,915 |
Shares issued in primary offering | 0 | 0 | 0 | 0 | 0 | 0 |
Foreign Currency Translation | 0 | 0 | 0 | (386,566) | 0 | (386,566) |
Net loss | $ 0 | 0 | 153,095 | 0 | $ 0 | 153,095 |
BALANCES (in shares) at Jun. 30, 2020 | 40,480,225 | | | | 14,169 | |
BALANCES at Jun. 30, 2020 | $ 40,480 | $ 591,386,109 | $ (206,172,555) | $ (406,781) | $ (256,226) | $ 384,591,027 |