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STOCK BASED COMPENSATION - Summary of Stock Options Outstanding (Details) - $ / shares	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
STOCK BASED COMPENSATION
Number of stock options outstanding, Beginning of period	19,170	5,723
Number of stock options outstanding, Granted	20,942	16,254
Number of stock options outstanding, Expired	(1,777)	(2,807)
Number of stock options outstanding, Canceled or forfeited	(549)
Number of stock options outstanding, End of period	37,786	19,170
Number of stock options Exercisable, End of period	37,786	19,170
Weighted average exercise price, Beginning of period	$ 80.00	$ 276.50
Weighted average exercise price, Granted	19.25	49.00
Weighted average exercise price, Expired	78.00	298.50
Weighted average exercise price, Canceled or forfeited	19.25
Weighted average exercise price, End of period	37.42	80.00
Weighted average exercise price Exercisable, End of period	$ 37.42	$ 80.00

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The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan.

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The weighted-average price as of the balance sheet date at which grantees can acquire the shares reserved for issuance on vested portions of options outstanding and currently exercisable under the stock option plan.

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Number of options or other stock instruments for which the right to exercise has lapsed under the terms of the plan agreements.

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The number of shares under options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option plan.

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Gross number of share options (or share units) granted during the period.

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Number of options outstanding, including both vested and non-vested options.

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Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan.

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Weighted average price at which grantees could have acquired the underlying shares with respect to stock options of the plan that expired.

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Weighted average per share amount at which grantees can acquire shares of common stock by exercise of options.

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