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Subsequent events	12 Months Ended
	Dec. 31, 2018
Subsequent Events [Abstract]
Subsequent events	Subsequent events On January 3, 2019, the Company issued 164,088 restricted Common Shares to Sylvia Wulf, its new Chief Executive Officer, per the terms of her employment agreement. The shares vest over a one-year period. On March 5, 2019, the Company issued 12,473 restricted Common Shares to Richard Clothier, Chair of the Board of Directors, per the terms of his compensation plan. The shares vest over a three-year period. On March 7, 2019, the Canadian Subsidiary received C$500 thousand in debt funding from ACOA (Note 8).

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- Definition

The entire disclosure for significant events or transactions that occurred after the balance sheet date through the date the financial statements were issued or the date the financial statements were available to be issued. Examples include: the sale of a capital stock issue, purchase of a business, settlement of litigation, catastrophic loss, significant foreign exchange rate changes, loans to insiders or affiliates, and transactions not in the ordinary course of business.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 855
-URI http://asc.fasb.org/topic&trid=2122774

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