13. SHAREHOLDERS' EQUITY - Reconciliation of the numerators and denominators (Details) (USD $) In Thousands, except Share data, unless otherwise specified	12 Months Ended
Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Stockholders' Equity Note [Abstract]
Basic earnings per share, Net Income (in dollars)	$ 4,361	$ 3,057	$ 3,207
Basic earnings per share, Weighted Average Number of Shares Outstanding (in shares)	8,130	8,888	9,483
Basic earnings per share (in dollars per share)	$ 0.54us-gaap_EarningsPerShareBasic	$ 0.34us-gaap_EarningsPerShareBasic	$ 0.34us-gaap_EarningsPerShareBasic
Effect of dilutive stock-based compensation	14	6	9
Diluted earnings per share, Net Income (in dollars)	$ 4,361	$ 3,057	$ 3,207
Diluted earnings per share, Weighted Average Number of Shares Outstanding (in shares)	8,144	8,894	9,492
Diluted earnings per share (in dollars per share)	$ 0.54us-gaap_EarningsPerShareDiluted	$ 0.34us-gaap_EarningsPerShareDiluted	$ 0.34us-gaap_EarningsPerShareDiluted

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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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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Net Income or Loss Available to Common Stockholders plus adjustments resulting from the assumption that dilutive convertible securities were converted, options or warrants were exercised, or that other shares were issued upon the satisfaction of certain conditions.

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The sum of dilutive potential common shares or units used in the calculation of the diluted per-share or per-unit computation.

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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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