Equity impact of the value of new stock issued during the period. Includes shares issued in an initial public offering or a secondary public offering.

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STOCKHOLDERS' EQUITY - AT MARKET ISSUANCE SALES AGREEMENT (Details) - USD ($)			3 Months Ended
	Jul. 10, 2018	May 18, 2018	Mar. 31, 2020
At Market Issuance Sales Agreements [Line Items]
Net cash proceeds from issuance of common stock after deducting sales commissions and other offering costs			$ 686,000
2018 Sales Agreement
At Market Issuance Sales Agreements [Line Items]
Aggregate offering price of common stock	$ 62,821,700	$ 100,000,000
Maximum commission rate (as a percent)		3.00%
Issuance of common stock in connection with at market offering (in shares)			530,228
Net cash proceeds from issuance of common stock after deducting sales commissions and other offering costs			$ 686,000