LEASES (Tables)

12 Months Ended

Dec. 31, 2019

Leases recorded on the balance sheet consist of the following (amounts in thousands):



Leases	Classification on the Balance Sheet	Balance, December 31, 2019
Assets
Operating lease ROU assets, net	Property, plant, equipment, and mineral properties, net	$	6,064
Liabilities
Current operating lease liabilities	Other current liabilities	$	2,187
Non-current operating lease liabilities	Operating lease liabilities	$	4,025

Other information related to lease term and discount rate is as follows:



	December 31, 2019
Weighted average remaining lease term - operating leases (in years)	3.1
Weighted average discount rate - operating leases	5.62	%

The components of lease expense are as follows (amounts in thousands):

Rental and lease expenses for the years ended December 31, 2018, and 2017 were $3.9 million and $5.7 million, respectively.

Supplemental cash flow information related to leases was as follows (amounts in thousands):



	For the Year Ended December 31, 2019
Cash paid for amounts included in the measurement of lease liabilities
Operating cash flows from operating leases	$	2,441
Right-of-Use Assets exchanged for new operating lease liabilities	8,123

As of December 31, 2019, maturities of lease liabilities are summarized as follows (amounts in thousands):



Years Ending December 31,	Operating Leases
2020	$	2,432
2021	2,116
2022	1,459
2023	357
2024	167
Thereafter	98
Total future minimum lease payments	$	6,629
Less - amount representing interest	417
Present value of future minimum lease payments	$	6,212
Less - current lease obligations	2,187
Long-term lease obligations	$	4,025

As of December 31, 2018, and prior to the adoption of ASC Topic 842, the annual future minimum lease payments were as follows (amounts in thousands):