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STOCKHOLDERS' EQUITY: (Details Textual) (USD $) | 3 Months Ended | 12 Months Ended | 3 Months Ended |  | 3 Months Ended
--- | --- | --- | --- | --- | ---
Mar. 31, 2014 | Mar. 31, 2013 | Mar. 31, 2014 Restricted Stock [Member] | Dec. 31, 2013 Repurchase Program 2013 [Member] | Dec. 31, 2013 January Repurchase Program 2013 [Member] | Dec. 31, 2013 May Repurchase Program 2013 [Member] | Mar. 31, 2014 Common Class A [Member] | Mar. 31, 2013 Common Class A [Member] | Mar. 31, 2013 Common Class D [Member] | Mar. 31, 2014 Common Class D [Member] Stock Plan 2009 [Member] | Mar. 31, 2014 Common Class D [Member] Amended and Restated 2009 Stock Plan [Member] | Mar. 31, 2014 Class A and D Common Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Stock Repurchase Program, Authorized Amount |  |  |  | $ 3,500,000 | $ 2,000,000 | $ 1,500,000 |  |  |  |  |  |
Stock Repurchase Program, Remaining Authorized Repurchase Amount |  |  |  |  |  |  |  |  |  |  |  | 57,000
Repurchase Of Common Stock Shares |  |  |  |  |  |  | 7,150 |  | 951,974 |  |  |
Repurchase Of Common Stock Value |  |  |  |  |  |  |  | 11,026 | 1,514,903 |  |  |
Repurchase Of Common Stock Price Per Share |  |  |  |  |  |  |  | $ 1.54 | $ 1.59 |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant |  |  |  |  |  |  |  |  |  | 7,000,000 | 7,000,000 |
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized |  |  |  |  |  |  |  |  |  | 8,250,000 |  |
Share-based Compensation Arrangement by Share-based Payment Award, remained available for issuance |  |  |  |  |  |  |  |  |  | 5,000,000 |  |
Share-based Compensation Arrangement by Share-based Payment Award, Maximum Number of Shares Per Employee |  |  |  |  |  |  |  |  |  |  | 1,000,000 |
Share-based Compensation, Total | 45,000 | 43,000 |  |  |  |  |  |  |  |  |  |
Employee Service Share-based Compensation, Nonvested Awards, Total Compensation Cost Not yet Recognized, Stock Options | 14,000 |  |  |  |  |  |  |  |  |  |  |
Employee Service Share-based Compensation, Nonvested Awards, Total Compensation Cost Not yet Recognized, Period for Recognition | 2 months |  | 8 months |  |  |  |  |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Weighted Average Grant Date Fair Value1 | $ 2.65 |  |  |  |  |  |  |  |  |  |  |
Employee Service Share-based Compensation, Nonvested Awards, Total Compensation Cost Not yet Recognized, Share-based Awards Other than Options |  |  | $ 171,000 |  |  |  |  |  |  |  |  |

X
- Definition This element represents that, the stock price per share of common stock repurchased. + References No definition available. + Details
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Balance Type: | na
Period Type: | duration

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- Definition This element represents that, the repurchase Class A common stock. + References No definition available. + Details
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- Definition Repurchase of Common Stock, Value + References No definition available. + Details
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- Definition The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology. + References No definition available. + Details
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- Definition 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 remained available for issuance under the equity-based compensation plan. + References No definition available. + Details
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- Definition 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. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (i) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition Unrecognized cost of unvested share-based awards, other than options, awarded to employees as compensation. + References No definition available. + Details
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- Definition Unrecognized cost of unvested options awarded to employees as compensation. + References No definition available. + Details
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- Definition The aggregate amount of noncash, equity-based employee remuneration. This may include the value of stock or unit options, amortization of restricted stock or units, and adjustment for officers' compensation. As noncash, this element is an add back when calculating net cash generated by operating activities using the indirect method. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3602-108585 + Details
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- Definition The highest quantity of shares an employee can purchase under the plan per period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition 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). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a)(3) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition 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. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition Amount of a stock repurchase plan authorized by an entity's Board of Directors. + References No definition available. + Details
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- Definition Amount remaining of a stock repurchase plan authorized by an entity's Board of Directors. + References No definition available. + Details
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