STOCKHOLDERS' EQUITY, Equity Incentive Plans (Details) - USD ($) | Mar. 23, 2022 | Dec. 31, 2021 | Dec. 31, 2020 | Jan. 01, 2022 |
Stock Options [Abstract] | | | | |
Shares reserved for grant (in shares) | | 87,241,078 | | |
Number of stock options granted (in shares) | | 1,895,550 | 1,468,412 | |
Weighted average remaining contractual life of stock options, outstanding | | 6 years 1 month 6 days | | |
Weighted average remaining contractual life of stock options, expected to vest | | 6 years 1 month 6 days | | |
Weighted average remaining contractual life of stock options, exercisable | | 4 years 10 months 24 days | | |
Stock Option Outstanding and Exercisable [Abstract] | | | | |
Outstanding at beginning of period (in shares) | | 7,862,722 | | |
Weighted average remaining contractual life of stock options, outstanding | | 6 years 1 month 6 days | | |
Options outstanding, weighted average exercise price (in dollars per share) | | $ 3.93 | | |
Options outstanding, aggregate intrinsic value | | $ 35,935 | | |
Options exercisable (in shares) | | 5,521,312 | | |
Weighted average remaining contractual life of stock options, exercisable | | 4 years 10 months 24 days | | |
Options exercisable, weighted average exercise price (in dollars per share) | | $ 4.54 | | |
Options exercisable, aggregate intrinsic value | | $ 4,831 | | |
Restricted Stock Units [Abstract] | | | | |
Restricted stock units vested over a period | | 4 years | | |
Total stock-based compensation expense, Amount [Abstract] | | | | |
Stock-based compensation | | $ 3,488,253 | $ 2,855,122 | |
Research and Development [Member] | | | | |
Total stock-based compensation expense, Amount [Abstract] | | | | |
Stock-based compensation | | 153,924 | 471,146 | |
Plasma Center Operating Expenses [Member] | | | | |
Total stock-based compensation expense, Amount [Abstract] | | | | |
Stock-based compensation | | 60,257 | 33,464 | |
Selling, General and Administrative [Member] | | | | |
Total stock-based compensation expense, Amount [Abstract] | | | | |
Stock-based compensation | | 2,958,008 | 2,107,577 | |
Cost of Product Revenue [Member] | | | | |
Total stock-based compensation expense, Amount [Abstract] | | | | |
Stock-based compensation | | $ 316,064 | $ 242,935 | |
$1.10 - $1.67 [Member] | | | | |
Stock Options [Abstract] | | | | |
Weighted average remaining contractual life of stock options, outstanding | | 9 years 7 months 6 days | | |
Stock Option Outstanding and Exercisable [Abstract] | | | | |
Exercise price range, lower limit (in dollars per share) | | $ 1.10 | | |
Exercise price range, upper limit (in dollars per share) | | $ 1.67 | | |
Outstanding at beginning of period (in shares) | | 352,500 | | |
Weighted average remaining contractual life of stock options, outstanding | | 9 years 7 months 6 days | | |
Options outstanding, weighted average exercise price (in dollars per share) | | $ 1.10 | | |
Options outstanding, aggregate intrinsic value | | $ 35,935 | | |
Options exercisable (in shares) | | 15,583 | | |
Weighted average remaining contractual life of stock options, exercisable | | 9 years 9 months 18 days | | |
Options exercisable, weighted average exercise price (in dollars per share) | | $ 1.10 | | |
Options exercisable, aggregate intrinsic value | | $ 4,831 | | |
$1.73 - $2.60 [Member] | | | | |
Stock Options [Abstract] | | | | |
Weighted average remaining contractual life of stock options, outstanding | | 8 years 10 months 24 days | | |
Stock Option Outstanding and Exercisable [Abstract] | | | | |
Exercise price range, lower limit (in dollars per share) | | $ 1.73 | | |
Exercise price range, upper limit (in dollars per share) | | $ 2.60 | | |
Outstanding at beginning of period (in shares) | | 1,673,518 | | |
Weighted average remaining contractual life of stock options, outstanding | | 8 years 10 months 24 days | | |
Options outstanding, weighted average exercise price (in dollars per share) | | $ 2.42 | | |
Options outstanding, aggregate intrinsic value | | $ 0 | | |
Options exercisable (in shares) | | 374,318 | | |
Weighted average remaining contractual life of stock options, exercisable | | 8 years 6 months | | |
Options exercisable, weighted average exercise price (in dollars per share) | | $ 2.42 | | |
Options exercisable, aggregate intrinsic value | | $ 0 | | |
$2.62 - $3.93 [Member] | | | | |
Stock Options [Abstract] | | | | |
Weighted average remaining contractual life of stock options, outstanding | | 5 years 10 months 24 days | | |
Stock Option Outstanding and Exercisable [Abstract] | | | | |
Exercise price range, lower limit (in dollars per share) | | $ 2.62 | | |
Exercise price range, upper limit (in dollars per share) | | $ 3.93 | | |
Outstanding at beginning of period (in shares) | | 4,209,177 | | |
Weighted average remaining contractual life of stock options, outstanding | | 5 years 10 months 24 days | | |
Options outstanding, weighted average exercise price (in dollars per share) | | $ 3.51 | | |
Options outstanding, aggregate intrinsic value | | $ 0 | | |
Options exercisable (in shares) | | 3,554,848 | | |
Weighted average remaining contractual life of stock options, exercisable | | 5 years 7 months 6 days | | |
Options exercisable, weighted average exercise price (in dollars per share) | | $ 3.51 | | |
Options exercisable, aggregate intrinsic value | | $ 0 | | |
$3.98 - $5.97 [Member] | | | | |
Stock Options [Abstract] | | | | |
Weighted average remaining contractual life of stock options, outstanding | | 5 years 7 months 6 days | | |
Stock Option Outstanding and Exercisable [Abstract] | | | | |
Exercise price range, lower limit (in dollars per share) | | $ 3.98 | | |
Exercise price range, upper limit (in dollars per share) | | $ 5.97 | | |
Outstanding at beginning of period (in shares) | | 487,040 | | |
Weighted average remaining contractual life of stock options, outstanding | | 5 years 7 months 6 days | | |
Options outstanding, weighted average exercise price (in dollars per share) | | $ 5.07 | | |
Options outstanding, aggregate intrinsic value | | $ 0 | | |
Options exercisable (in shares) | | 442,202 | | |
Weighted average remaining contractual life of stock options, exercisable | | 5 years 4 months 24 days | | |
Options exercisable, weighted average exercise price (in dollars per share) | | $ 5.07 | | |
$6.02 - $9.03 [Member] | | | | |
Stock Options [Abstract] | | | | |
Weighted average remaining contractual life of stock options, outstanding | | 1 year 1 month 6 days | | |
Stock Option Outstanding and Exercisable [Abstract] | | | | |
Exercise price range, lower limit (in dollars per share) | | $ 6.02 | | |
Exercise price range, upper limit (in dollars per share) | | $ 9.03 | | |
Outstanding at beginning of period (in shares) | | 892,987 | | |
Weighted average remaining contractual life of stock options, outstanding | | 1 year 1 month 6 days | | |
Options outstanding, weighted average exercise price (in dollars per share) | | $ 7.74 | | |
Options outstanding, aggregate intrinsic value | | $ 0 | | |
Options exercisable (in shares) | | 886,861 | | |
Weighted average remaining contractual life of stock options, exercisable | | 1 year | | |
Options exercisable, weighted average exercise price (in dollars per share) | | $ 7.74 | | |
$9.37 - $10.80 [Member] | | | | |
Stock Options [Abstract] | | | | |
Weighted average remaining contractual life of stock options, outstanding | | 2 years 10 months 24 days | | |
Stock Option Outstanding and Exercisable [Abstract] | | | | |
Exercise price range, lower limit (in dollars per share) | | $ 9.37 | | |
Exercise price range, upper limit (in dollars per share) | | $ 10.80 | | |
Outstanding at beginning of period (in shares) | | 247,500 | | |
Weighted average remaining contractual life of stock options, outstanding | | 2 years 10 months 24 days | | |
Options outstanding, weighted average exercise price (in dollars per share) | | $ 10.28 | | |
Options outstanding, aggregate intrinsic value | | $ 0 | | |
Options exercisable (in shares) | | 247,500 | | |
Weighted average remaining contractual life of stock options, exercisable | | 2 years 10 months 24 days | | |
Options exercisable, weighted average exercise price (in dollars per share) | | $ 10.28 | | |
Options exercisable, aggregate intrinsic value | | $ 0 | | |
2014 Omnibus Incentive Compensation Plan [Member] | | | | |
Stock Options [Abstract] | | | | |
Shares reserved for grant (in shares) | | 2,334,940 | | |
Shares available for issuance (in shares) | | 69,090 | | |
Equity Incentive Plans [Member] | | | | |
Stock Options [Abstract] | | | | |
Percentage of outstanding shares of common stock | | 4.00% | | |
Shares available for issuance (in shares) | | 10,000,000 | | |
Stock Option Outstanding and Exercisable [Abstract] | | | | |
Unrecognized compensation expense, stock options | | $ 3,100,000 | | |
Unrecognized compensation expense recognition period | | 2 years 4 months 24 days | | |
Equity Incentive Plans [Member] | Subsequent Event [Member] | | | | |
Stock Options [Abstract] | | | | |
Shares available for issuance (in shares) | | | | 7,901,643 |
Stock Options [Member] | | | | |
Fair Value Assumptions and Methodology [Abstract] | | | | |
Dividend yield | | 0.00% | 0.00% | |
Stock Option, Shares [Abstract] | | | | |
Options outstanding, vested and expected to vest, beginning balance (in shares) | | 6,922,931 | 5,630,351 | |
Forfeited (in shares) | | (529,202) | (141,724) | |
Expired (in shares) | | (426,557) | (27,482) | |
Granted (in shares) | | 1,895,550 | 1,468,412 | |
Exercised (in shares) | | 0 | (6,626) | |
Options outstanding, vested and expected to vest, ending balance (in shares) | | 7,862,722 | 6,922,931 | |
Options exercisable (in shares) | | 5,521,312 | | |
Stock Options, Weighted Average Exercise Price [Abstract] | | | | |
Options outstanding, vested and expected to vest, weighted average exercise price, beginning balance (in dollars per share) | | $ 4.40 | $ 4.76 | |
Forfeited, weighted average exercise price (in dollars per share) | | 2.89 | 3.81 | |
Expired, weighted average exercise price (in dollars per share) | | 4.91 | 4.26 | |
Granted, weighted average exercise price (in dollars per share) | | 2.14 | 2.93 | |
Exercised, weighted average exercise price (in dollars per share) | | 0 | 2.03 | |
Options outstanding, vested and expected to vest, weighted average exercise price, ending balance (in dollars per share) | | 3.93 | $ 4.40 | |
Options exercisable, weighted average exercise price (in dollars per share) | | $ 4.54 | | |
Stock Options [Member] | Minimum [Member] | | | | |
Fair Value Assumptions and Methodology [Abstract] | | | | |
Expected term | | 5 years 6 months | 5 years 6 months | |
Volatility | | 68.00% | 62.00% | |
Risk-free interest rate | | 0.80% | 0.33% | |
Stock Options [Member] | Maximum [Member] | | | | |
Fair Value Assumptions and Methodology [Abstract] | | | | |
Expected term | | 6 years 3 months 18 days | 6 years 3 months 18 days | |
Volatility | | 70.00% | 70.00% | |
Risk-free interest rate | | 1.27% | 1.68% | |
Restricted Stock Units (RSUs) [Member] | | | | |
Stock Option Outstanding and Exercisable [Abstract] | | | | |
Unrecognized compensation expense, non option | | | $ 5,100,000 | |
Unrecognized compensation expense recognition period | | | 2 years 7 months 6 days | |
Restricted Stock Units [Abstract] | | | | |
Shares withheld for tax withholding obligation (in shares) | | 27,850 | | |
Amount of shares withheld for tax withholding obligation | | $ 62,000 | | |
Unvested RSU, Shares [Abstract] | | | | |
Beginning balance (in shares) | | 326,000 | 0 | |
Granted (in shares) | | 4,384,744 | 361,000 | |
Vested (in shares) | | (92,750) | (15,000) | |
Forfeited (in shares) | | (132,861) | (20,000) | |
Ending balance (in shares) | | 4,485,133 | 326,000 | |
Unvested RSU, Weighted Average Grant Date Fair Value | | | | |
Unvested, Weighted average grant date fair value, beginning balance (in dollars per share) | | $ 2.81 | $ 0 | |
Granted, Weighted average grant date fair value (in dollars per share) | | 1.30 | 2.82 | |
Vested, Weighted average grant date fair value (in dollars per share) | | 2.82 | 2.92 | |
Forfeited, Weighted average grant date fair value (in dollars per share) | | 2.51 | 2.83 | |
Unvested, Weighted average grant date fair value, ending balance (in dollars per share) | | $ 1.34 | $ 2.81 | |
Restricted Stock Units (RSUs) [Member] | Employees [Member] | | | | |
Restricted Stock Units [Abstract] | | | | |
Restricted stock units vested over a period | | 4 years | | |
Restricted Stock Units (RSUs) [Member] | Directors [Member] | | | | |
Restricted Stock Units [Abstract] | | | | |
Restricted stock units vested over a period | | 1 year | | |
Restricted Stock Units (RSUs) [Member] | Employee Retention Program [Member] | | | | |
Restricted Stock Units [Abstract] | | | | |
Number of restricted stock units granted (in shares) | | 3,832,500 | | |
Time Based Restricted Stock (RSUs) [Member] | Employee Retention Program [Member] | | | | |
Restricted Stock Units [Abstract] | | | | |
Number of restricted stock units granted (in shares) | | 2,685,000 | | |
Time Based Restricted Stock (RSUs) [Member] | Employee Retention Program [Member] | Tranche One [Member] | | | | |
Restricted Stock Units [Abstract] | | | | |
Vesting percentage of RSUs granted under retention bonus program | | 50.00% | | |
Milestone Based Restricted Stock (RSUs) [Member] | Subsequent Event [Member] | | | | |
Unvested RSU, Shares [Abstract] | | | | |
Vested (in shares) | (254,745) | | | |
Milestone Based Restricted Stock (RSUs) [Member] | Employee Retention Program [Member] | | | | |
Restricted Stock Units [Abstract] | | | | |
Number of restricted stock units granted (in shares) | | 1,147,500 | | |