DERIVATIVES - Additional Information (Details)	6 Months Ended
	Jun. 30, 2019 USD ($) derivative_contract board_foot	Jun. 30, 2018 USD ($) derivative_contract board_foot
Derivative [Line Items]
Restricted cash on deposit | $	$ 70,200	$ 56,700
Net Long (Buying)
Derivative [Line Items]
Buying position | board_foot	1,320,000	880,000
Number of lumber derivative contract | derivative_contract	12	8
Short
Derivative [Line Items]
Buying position | board_foot	550,000
Number of lumber derivative contract | derivative_contract	5
Other Current Assets
Derivative [Line Items]
Fair value of lumber contracts | $	$ 13,700	$ (6,000)