Note 4 - Inventories

9 Months Ended

Sep. 30, 2018

Notes to Financial Statements

Inventory Disclosure [Text Block]

4.

INVENTORIES

Inventories consist of raw materials, work-in-process and finished goods and are stated at the lower of cost or market using the

first

-in,

first

-out (FIFO) method or through the moving average cost method. At

September 

30,

2018

and

December 

31,

2017,

accrued liabilities included

$1.8

million and

$1.3

million of accrued inventory payable, respectively. At

September 

30,

2018

and

December 

31,

2017,

inventory by category is valued net of reserves and consists of:

	September 30,			December 31,
(in thousands)	2018			2017
Finished goods	$	9,872		$	10,792
Raw materials		3,830			3,287
Work-in-process		3,554			759
Inventory reserves		(1,204	)		(946	)
Total inventories	$	16,052		$	13,892