STOCKHOLDERS' EQUITY, Summary of Stock Option Transactions (Details) - USD ($)	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018		Dec. 31, 2017		Dec. 31, 2016	Dec. 31, 2015
Stock Options [Roll Forward]
Granted (in shares)	0	0		0		0	0
Stock Options, Weighted Average Exercise Price [Roll Forward]
Proceeds from stock options exercised	$ 0	$ 0	[1]	$ 223,404	[1]
Stock Options [Member]
Stock Options [Roll Forward]
Outstanding, beginning of period (in shares)		0		56,400
Granted (in shares)	0	0		0
Forfeited or cancelled (in shares)				(12,000)
Exercised (in shares)				(44,400)
Outstanding, end of period (in shares)				0		56,400
Exercisable at end of year (in shares)				0
Stock Options, Weighted Average Exercise Price [Roll Forward]
Outstanding, beginning of period (in dollars per share)		$ 0		$ 5.14
Granted (in dollars per share)				0
Forfeited or cancelled (in dollars per share)				5.14
Exercised (in dollars per share)				5.14
Outstanding, end of period (in dollars per share)				0		$ 5.14
Exercisable at end of year (in dollars per share)				0
Weighted-average fair value of options granted during year (in dollars per share)				$ 0
Compensation cost	$ 0	$ 0		$ 0		$ 0	$ 0
Intrinsic value of stock options exercised				200,000
Proceeds from stock options exercised				$ 200,000
Stock Options [Member] | Maximum [Member]
Stock Options [Abstract]
Options expiration period	10 years

[1] As described in Note 2 to these Consolidated Financial Statements, we have restated the Consolidated Financial Statements.