Note 4 - Inventories

6 Months Ended

Jun. 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

June 

30,

2018

and

December 

31,

2017,

accrued liabilities included

$1.7

 million and

$1.3

million of accrued inventory payable, respectively. At

June 

30,

2018

and

December 

31,

2017,

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

	June 30,			December 31,
(in thousands)	2018			2017
Finished goods	$	8,969		$	10,792
Raw materials		3,331			3,287
Work-in-process		3,431			759
Inventory reserves		(1,047	)		(946	)
Total inventories	$	14,684		$	13,892