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STOCKHOLDERS' EQUITY (Details) - USD ($)	3 Months Ended			6 Months Ended
	Mar. 31, 2017	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2016	Dec. 31, 2015	Dec. 06, 2016	Dec. 09, 2015	Dec. 10, 2014	Dec. 12, 2013	Dec. 07, 2012
STOCKHOLDERS' EQUITY (Details) [Line Items]
Repurchasing Amount				$ 80,000	$ 243,000
Options exercisable (in Shares)		2,000		2,000
Options outstanding (in Shares)		2,000		2,000
Weighted average exercise price, exercisable options (in Dollars per share)		$ 12.31		$ 12.31
Number of options exercised (in Shares)				0
Number of options forfeited (in Shares)				0
Number of options granted (in Shares)				0
Share-based Compensation		$ 0	$ 0	$ 0	$ 0
Share Repurchase Plan - December 2012 [Member]
STOCKHOLDERS' EQUITY (Details) [Line Items]
Stock repurchase program, authorized amount										$ 2,750,000
Share Repurchase Renewal, December 2014 [Member]
STOCKHOLDERS' EQUITY (Details) [Line Items]
Stock repurchase program, authorized amount								$ 2,750,000
Share Repurchase Renewal, December 2013 [Member]
STOCKHOLDERS' EQUITY (Details) [Line Items]
Stock repurchase program, authorized amount									$ 2,750,000
Share Repurchase Renewal, December 2016 [Member]
STOCKHOLDERS' EQUITY (Details) [Line Items]
Stock repurchase program, authorized amount						$ 2,750,000
Share Repurchase Renewal, December 2015 [Member]
STOCKHOLDERS' EQUITY (Details) [Line Items]
Stock repurchase program, authorized amount							$ 2,750,000
Common Class A [Member]
STOCKHOLDERS' EQUITY (Details) [Line Items]
Number of shares repurchased (in Shares)		32,605		47,552
Repurchasing Amount		$ 50,000		$ 80,000
Monthly Dividends Paid [Member]
STOCKHOLDERS' EQUITY (Details) [Line Items]
Common Stock, Dividends, Per Share, Cash Paid (in Dollars per share)				$ 0.0025
Monthly Dividend Authorized [Member] | Scenario, Forecast [Member]
STOCKHOLDERS' EQUITY (Details) [Line Items]
Monthly Dividend Declared (in Dollars per share)	$ 0.0025

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Monthly declared dividend per share.

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Aggregate dividends paid during the period for each share of common stock outstanding.

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The cash outflow to reacquire common stock during the period.

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The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan.

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The weighted-average price as of the balance sheet date at which grantees can acquire the shares reserved for issuance on vested portions of options outstanding and currently exercisable under the stock option plan.

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The number of shares under options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option plan.

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

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Number of options outstanding, including both vested and non-vested options.

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

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Amount of stock repurchase plan authorized.

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Number of shares that have been repurchased during the period and are being held in treasury.

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