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Note 4 - Inventories (Tables)

3 Months Ended

Mar. 31, 2019

Notes Tables

Schedule Of Inventory Current And Non Current [Table Text Block]

		March 31, 2019				December 31, 2018
Current inventories:
Raw materials		$	37,381			$	34,426
Work-in-process			1,409				2,368
Finished goods			824				1,075
Supplies			1,502				1,507
Total current inventories		$	41,116			$	39,376

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- Definition

Tabular disclosure of the carrying amount as of the balance sheet date of merchandise, goods, commodities, or supplies held for future sale or to be used in manufacturing, servicing or production process. Includes current and non-current inventory balances.

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