Share-Based Compensation (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
SHARE-BASED COMPENSATION
Share-based compensation	$ 1,049,000	$ 741,000	$ 1,974,000	$ 1,468,000
Cost of goods sold
SHARE-BASED COMPENSATION
Share-based compensation	18,000	14,000	30,000	27,000
Selling, general and administrative
SHARE-BASED COMPENSATION
Share-based compensation	955,000	640,000	1,787,000	1,269,000
Research and development
SHARE-BASED COMPENSATION
Share-based compensation	76,000	87,000	157,000	172,000
Inventory
SHARE-BASED COMPENSATION
Total share-based compensation cost capitalized as part of cost of inventory	$ 0	$ 1,000	$ 1,000	$ 5,000