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.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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- Definition

Number of shares of equity interests issued or issuable to acquire entity.

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-Name Accounting Standards Codification
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Represents the compensation cost capitalized during the period arising from equity-based compensation arrangements (for example, shares of stock, units, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees.

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- Definition

Unrecognized cost of unvested share-based compensation awards.

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The total recognized tax benefit related to compensation cost for equity-based payment arrangements recognized in income during the 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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The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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The number of equity-based payment instruments, excluding stock (or unit) options, that vested during the reporting period.

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Note 15 - Stock Plans and Stock Associated with Acquisition (Details Textual) - USD ($)		12 Months Ended
	Jul. 09, 2014	Dec. 31, 2015	Dec. 31, 2014
Restricted Stock Units (RSUs) [Member] \| Common Class A [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period	124,167	122,534
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period			10,206
Restricted Stock Units (RSUs) [Member] \| Minimum [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period		1 year
Restricted Stock Units (RSUs) [Member] \| Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period		3 years
Restricted Stock Units (RSUs) [Member]
Employee Service Share-based Compensation, Allocation of Recognized Period Costs, Capitalized Amount		$ 0
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period		122,534
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period		65,712
Common Class A [Member] \| Reliable Networks [Member]
Business Acquisition, Equity Interest Issued or Issuable, Number of Shares			68,233
Common Class A [Member]
Business Acquisition, Equity Interest Issued or Issuable, Number of Shares		0
Allocated Share-based Compensation Expense		$ 362,000	$ 643,000
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized		470,000	286,000
Employee Service Share-based Compensation, Tax Benefit from Compensation Expense		$ 144,000	$ 249,000