Net Income (Loss) Per Common and Preferred Share (Tables)

6 Months Ended

Jun. 30, 2018

Earnings Per Share [Abstract]

Computation of Basic and Diluted Net Loss Per Common and Preferred Share

The following table sets out the computation of basic and diluted net loss per common and preferred share:

	Three Months Ended June 30,											Six Months Ended June 30,
	2018						2017					2018						2017
Numerator:	Common Shares			Preferred Shares			Common Shares			Preferred Shares		Common Shares			Preferred Shares			Common Shares			Preferred Shares
Allocation of loss attributed to shareholders
Basic	$	(6,498	)	$	(1,303	)	$	(7,380	)	$	—	$	(10,560	)	$	(996	)	$	(14,897	)	$	—
Adjustment for change in fair value of liability classified stock options		—			—			(30	)		—		—			—			(162	)		—
Diluted	$	(6,498	)	$	(1,303	)	$	(7,410	)	$	—	$	(10,560	)	$	(996	)	$	(15,059	)	$	—
Denominator:
Weighted average number of shares:
Basic		14,306,491			2,868,000			17,997,194			—		16,055,456			1,513,667			17,971,702			—
Adjustment for dilutive effect of stock options		—			—			18,554			—		—			—			23,407			—
Diluted		14,306,491			2,868,000			18,015,748			—		16,055,456			1,513,667			17,995,109			—
Net loss attributable to shareholders per share - basic	$	(0.45	)	$	(0.45	)	$	(0.41	)	$	—	$	(0.66	)	$	(0.66	)	$	(0.83	)	$	—
Net loss attributable to shareholders per share - diluted	$	(0.45	)	$	(0.45	)	$	(0.41	)	$	—	$	(0.66	)	$	(0.66	)	$	(0.84	)	$	—