SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Earnings Per Share (Details) - USD ($)	3 Months Ended	9 Months Ended
Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Earnings per share
Stock options excluded from calculation of diluted EPS	670,338		674,042
Net income (loss)	$ (125,304)	$ (254,826)	$ (1,721,089)	$ 5,239,459
Preferred dividend requirements	(176,249)	(227,499)	(528,747)	(682,802)
Earnings (loss) applicable to common shareholders	$ (301,553)	$ (482,325)	$ (2,249,836)	$ 4,556,657
Average common shares outstanding	29,649,874	27,873,447	29,252,652	27,759,333
Average common and common equivalent shares outstanding - assuming dilution	29,649,874	27,873,447	29,252,652	29,436,008
Basic earnings (loss) per share (in dollars per share)	$ (0.01)	$ (0.02)	$ (0.08)	$ 0.16
Diluted earnings (loss) per share (in dollars per share)	$ (0.01)	$ (0.02)	$ (0.08)	$ 0.15

Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented.

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

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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.

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The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

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Net income after adjustments for dividends on preferred stock (declared in the period) and/or cumulative preferred stock (accumulated for the period).

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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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