For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

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Amount, after allowance for credit loss, of right to consideration in exchange for good or service transferred to customer when right is conditioned on something other than passage of time.

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The carrying amount of consideration received or receivable as of the balance sheet date on potential earnings that were not recognized as revenue in conformity with GAAP, and which are expected to be recognized as such within one year or the normal operating cycle, if longer, including sales, license fees, and royalties, but excluding interest income.

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REVENUE RECOGNITION AND RELATED ALLOWANCES - Additional Information (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018	Dec. 31, 2018
Revenues	$ 54,357	$ 47,268	$ 107,244	$ 93,751
Contract with Customer, Asset, Net	100		100		$ 100
Deferred Revenue, Current	558		558		$ 711
Deferred Revenue, Revenue Recognized			37
Performance Obligation From Prior Period [Member]
Revenues			(3,500)	$ 6,800
Sales of contract manufactured products [Member]
Revenue, Remaining Performance Obligation, Amount	5,500		5,500
Product Development Services [Member]
Revenue, Remaining Performance Obligation, Amount	$ 1,900		$ 1,900
Minimum [Member] \| Product Development Services [Member]
Revenue, Remaining Performance Obligation, Remaining Period	6 months		6 months
Maximum [Member] \| Product Development Services [Member]
Revenue, Remaining Performance Obligation, Remaining Period	12 months		12 months
Customer One [Member]
Concentration Risk, Percentage	30.00%	32.00%	32.00%	33.00%
Customer Two [Member]
Concentration Risk, Percentage	26.00%	23.00%	24.00%	24.00%
Customer Three [Member]
Concentration Risk, Percentage	24.00%	21.00%	25.00%	20.00%
Customer One Two And Three [Member]
Concentration Risk, Percentage			83.00%