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Income Per Share and Per Unit - Computation of Basic and Diluted Net Income Per Share (Detail) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Numerator
Net income available to common stockholders for basic computation	$ 276,926	$ 1,761,106	$ 2,147,942	$ 2,244,205
Denominator
Weighted average number of common shares outstanding for basic computation	13,813,168	14,949,651	13,898,910	14,871,281
Basic net income per share	$ 0.02	$ 0.12	$ 0.15	$ 0.15
Weighted average number of common shares outstanding for diluted computation	13,815,035	14,949,651	13,908,359	14,871,281
Diluted net income per share	$ 0.02	$ 0.12	$ 0.15	$ 0.15

X

- Definition

The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period.

+ References

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-Publisher FASB
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The amount of net income (loss) for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period.

+ References

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Amount, after deduction of tax, noncontrolling interests, dividends on preferred stock and participating securities; of income (loss) available to common shareholders.

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The average number of shares or units issued and outstanding that are used in calculating diluted EPS or earnings per unit (EPU), determined based on the timing of issuance of shares or units in the period.

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Number of [basic] shares or units, after adjustment for contingently issuable shares or units and other shares or units not deemed outstanding, determined by relating the portion of time within a reporting period that common shares or units have been outstanding to the total time in that period.

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