EQUITY AWARDS - Schedule of Nonvested Stock Option Activity (Details) - $ / shares	6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020
Number of Shares
Outstanding at beginning of year (in shares)	214,680	251,120
Effect of 10% stock dividend (in shares)	23,218
Granted (in shares)	24,500	35,000
Vested (in shares)	(31,724)	(35,740)
Forfeited (in shares)	(9,020)	(23,200)
Balance (in shares)	221,654	227,180
Weighted-Average Exercise Price
Outstanding at beginning of year (in USD per share)	$ 4.46	$ 4.97
Granted (in USD per share)	5.67	4.13
Vested (in USD per share)	(6.13)	(6.43)
Forfeited (in USD per share)	(8.06)	(3.13)
Balance (in USD per share)	$ 5.01	$ 5.55