5. Accounts Receivables (Tables)

12 Months Ended

Dec. 31, 2017

Receivables [Abstract]

Accounts receivable

Accounts receivable consist of the following (in thousands):

		December 31,
		2017		2016
Trade accounts receivable	$	45,752	$	50,532
Less allowance for prompt pay discounts		(846)		(1,038)
Less allowance for doubtful accounts		(15)		(500)
Total trade receivables, net		44,891		48,994
Receivables from third parties		118		1,200
Other miscellaneous receivables		308		535
Total accounts receivable, net	$	45,317	$	50,729