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Issued shares transferred to stock option plan.

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New shares issued under plan.

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Percentage of directors holding in common stock threshold.

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Share based compensation arrangement by share based payment award annual vesting.

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Share based compensation arrangement by share based payment award options grants in period grant date fair value per share.

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Stock Award Plan and Incentive Plan approval date

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Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees.

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Weighted average period over which unrecognized compensation is expected to be recognized for equity-based compensation plans, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Unrecognized cost of unvested options awarded to employees as compensation.

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Disclosure of the aggregate tax benefit realized from the exercise of stock options and the conversion of similar instruments during the annual period.

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Period which an employee's right to exercise an award is no longer contingent on satisfaction of either a service condition, market condition or a performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Date the equity-based award expires, in CCYY-MM-DD format.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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The maximum number of shares (or other type of equity) originally approved (usually by shareholders and board of directors), net of any subsequent amendments and adjustments, for awards under the equity-based compensation plan. As stock or unit options and equity instruments other than options are awarded to participants, the shares or units remain authorized and become reserved for issuance under outstanding awards (not necessarily vested).

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The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable.

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Net number of share options (or share units) granted during the period.

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The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology.

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Number of shares of stock issued as of the balance sheet date, including shares that had been issued and were previously outstanding but which are now held in the treasury.

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Number of share options (or share units) exercised during the current period.

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Stock-Based Compensation Plans - Additional Information (Detail) - USD ($)								12 Months Ended
	Oct. 15, 2015	Sep. 14, 2015	May. 20, 2015	Mar. 06, 2015	Mar. 03, 2015	Jan. 14, 2015	Apr. 20, 2007	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total compensation expense for share-based payment awards								$ 400,000	$ 200,000	$ 200,000
Total unrecognized estimated compensation expense related to non-vested stock options granted								$ 500,000
Stock plan expected to be recognized over a weighted-average period								2 years 1 month 13 days
Exercise of options, Shares/Options exercised								0	0
Tax benefit								$ 0
Number of Shares, Granted/Total options granted								1,785,000	495,000	505,000
Previously issued options to outside directors								0.00%
Approval date of 2007 Stock Award and Incentive Plan							Apr. 20, 2007
Issuance of aggregate shares								9,253,876
New shares issued under the plan								7,500,000
Shares transferred from 2000 Stock Option Plan								1,352,806
Shares transferred to 2007 plan from Directors Stock Plan								401,070
Shares available for future issuance								2,757,266
Rate at option vested								20.00%
Weighted-average grant date fair value of options granted								$ 0.54	$ 0.29	$ 0.19
2000 Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Rate at option vested								20.00%
Maximum shares of common stock available for issuance								1,945,236
Director Stock Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Previously issued options to outside directors								0.05%
Maximum shares of common stock available for issuance								725,000
Expiry of Directors Stock Plan								Jan. 29, 2007
Timothy Rothwell [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of Shares, Granted/Total options granted								175,000
Timothy Rothwell [Member] \| Black Scholes Option Pricing Model [Member] \| Option Two Pricing Model [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of Shares, Granted/Total options granted								175,000
Options valued on the grant date		$ 0.60
Outside Directors [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of Shares, Granted/Total options granted								75,000
Outside Directors [Member] \| Option Two Pricing Model [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of Shares, Granted/Total options granted								40,000
Outside Directors [Member] \| Black Scholes Option Pricing Model [Member] \| Option Two Pricing Model [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options valued on the grant date			$ 0.50
Michael Garone [Member] \| Option Two Pricing Model [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options valued on the grant date					$ 0.55
Michael Garone [Member] \| Black Scholes Option Pricing Model [Member] \| Option One Pricing Model [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of Shares, Granted/Total options granted								40,000
Options valued on the grant date						$ 0.34
Michael Garone [Member] \| Black Scholes Option Pricing Model [Member] \| Option Two Pricing Model [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of Shares, Granted/Total options granted								40,000
President [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of Shares, Granted/Total options granted								300,000
Chief Executive Officer [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of Shares, Granted/Total options granted								150,000
Non-Executive Employees and Consultants [Member] \| Black Scholes Option Pricing Model [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of Shares, Granted/Total options granted								250,000
Options valued on the grant date				$ 0.59
Carl Sailer, Vice President, Sales and Marketing [Member] \| Black Scholes Option Pricing Model [Member] \| Option Two Pricing Model [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of Shares, Granted/Total options granted								40,000
Options valued on the grant date	$ 0.59
Minimum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expiry of vested option								5 years
Minimum [Member] \| 2000 Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expiry of vested option								10 years
Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expiry of vested option								10 years
Maximum [Member] \| 2000 Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expiry of vested option								5 years