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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The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

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The cash inflow associated with the amount received from entity's first offering of stock to the public.

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The cumulative amount of the reporting entity's undistributed earnings or deficit.

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Total revenue from sale of goods and services rendered during the reporting period, in the normal course of business, reduced by sales returns and allowances, and sales discounts.

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Basis of Presentation (Additional Information (Detail) - USD ($)	3 Months Ended		6 Months Ended			12 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Dec. 31, 2017	Jun. 30, 2017	Jun. 30, 2016	Dec. 31, 2016	Dec. 31, 2015
Basis Of Presentation [Line Items]
Net Income (Loss) Attributable To Parent	$ (4,070,099)	$ (4,103,490)		$ (8,251,762)	$ (7,879,229)	$ 19,250,082	$ 13,427,478
Retained Earnings Accumulated Deficit	(85,090,712)			(85,090,712)		(76,838,950)
Proceeds from Issuance Initial Public Offering						$ 19,238,015
Sales Revenue Net	$ 1,325,261	$ 560,877		$ 2,535,924	$ 924,717
Scenario, Forecast [Member]
Basis Of Presentation [Line Items]
Sales Revenue Net			$ 715,000
Toshiba Japan [Member] \| Sales Revenue, Net [Member]
Basis Of Presentation [Line Items]
Concentration Risk, Percentage				26.00%	0.00%
Toshiba Japan [Member] \| Accounts Receivable [Member]
Basis Of Presentation [Line Items]
Concentration Risk, Percentage				75.00%	0.00%