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COMMON STOCK AND NON-CONTROLLING INTEREST - Common Stock (Details) - USD ($)	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Mar. 20, 2019	Aug. 09, 2016
Class of Stock [Line Items]
Shares authorized	100,000,000	100,000,000
Common stock, par value (in dollars per share)	$ 0.0001	$ 0.0001
Entity Common Stock, Shares Outstanding	43,998,560		44,504,090
Number of shares authorized				3,000,000
Number of additional shares authorized	1,500,000
Options vested in period	579,258
Total non-cash compensation cost recognized	$ 1,200,214	$ 1,074,038
Share Incentive Plan | Restricted Stock
Class of Stock [Line Items]
Issued for services	1,838,914
Options vested in period	376,991	16,000
Restricted stock units, vesting year 3	33.30%
Restricted Stock Units, Vesting Percentage, Year 4	33.30%
Restricted Stock Units, Vesting Percentage, Year 5	33.30%
Share Incentive Plan | Restricted Stock | Director
Class of Stock [Line Items]
Issued for services	529,223
Options vested in period		242,358

X

- Definition

Indicate number of shares or other units outstanding of each of registrant's classes of capital or common stock or other ownership interests, if and as stated on cover of related periodic report. Where multiple classes or units exist define each class/interest by adding class of stock items such as Common Class A [Member], Common Class B [Member] or Partnership Interest [Member] onto the Instrument [Domain] of the Entity Listings, Instrument.

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Amount of increase to additional paid-in capital (APIC) from recognition of equity-based compensation.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Face amount or stated value per share of common stock.

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The number of equity-based payment instruments, excluding stock (or unit) options, that vested during the reporting period.

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Number of additional shares authorized for issuance under an established share-based compensation plan.

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Number of shares issued in lieu of cash for services contributed to the entity. Number of shares includes, but is not limited to, shares issued for services contributed by vendors and founders.

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