Significant Accounting Policies (Narrative) (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2018	Dec. 31, 2017
Up-front licensing fees		$ 416
Revenues	$ 1,824	5,195
Deferred Revenue, Revenue Recognized		0
Allowance for Doubtful Accounts Receivable		0
Bad debt expense	0	29
Investment Tax Credit	289	255
Research and Development Arrangement [Member]
Revenues	$ 1,824	1,019
Royalties [Member]
Deferred Revenue, Revenue Recognized		$ 0

Represents amount of bad debt expense.

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- Definition

Up-front licensing fees

+ References

No definition available.

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- Definition

For an unclassified balance sheet, a valuation allowance for receivables due a company that are expected to be uncollectible.

+ References

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Amount of revenue recognized that was previously reported as deferred or unearned revenue.

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The amount deducted from an entities' taxes, reflecting a percentage of an amount invested in certain assets spread over the useful life of those assets; includes deferred investment tax credits.

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Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss).

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