RELATED PARTY TRANSACTIONS (Tables)

3 Months Ended

Mar. 31, 2019

Related party balances, as of the date set forth in the footnotes, are as follows, in thousands:

		2019		2018
K&R and 7100 LLC:
Deposit amounts owed to the Company by related parties	(1)	$	42	$	42
Prepaid expenses to related parties	(1)		43		43
Operating lease right-of-use asset	(4)		4,921		—
Notes payable to related parties	(3)		1,020		1,536
Operating lease liability	(5)		4,921		—
Facility rent expense to related parties	(6)		113		113
Interest expense to related parties	(6)		19		19

LK Property:
Lease deposit to LK Property	(1)	$	3	$	3
Prepaid expenses to related parties	(1)		3		3
Accounts payable to LK Property	(2)		2		2
Rent expense to LK Property*	(6)		9		9

MetalX:
Accounts receivable from MetalX	(1)	$	24	$	—
Revenue from product sales to MetalX	(6)		24		—

*Excludes amounts reimbursed to LK Property for utilities and property tax.

(1) Included in receivable and other assets from related parties on the Condensed Consolidated Balance Sheets; balances are as of March 31, 2019 and December 31, 2018.

(2) Included in payable and accrued expenses to related parties on the Condensed Consolidated Balance Sheets; balances are as of March 31, 2019 and December 31, 2018.

(3) Included in current maturities of long-term debt, related parties and long-term debt, related parties on the Condensed Consolidated Balance Sheets; balance is as of March 31, 2019 and December 31, 2018.

(4) Included in operating lease right-of-use assets, related parties on the Condensed Consolidated Balance Sheets; balances are as of March 31, 2019 and December 31, 2018.

(5) Included in current maturities of operating lease liabilities and operating lease liabilities, related parties on the Condensed Consolidated Balance Sheets; balances are as of March 31, 2019 and December 31, 2018.

(6) Included in the Condensed Consolidated Statements of Operations; amounts are for the three months ended March 31, 2019 and March 31, 2018.