SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Earnings Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Numerator for basic earnings per share:
Net Income from continuing operations									$ 7,575	$ 8,977	$ 6,603
Less: Dividends on preferred stock									498	1,128	575
Net Income from continuing operations available to common shareholders - basic									7,077	7,849	6,028
Net Income from discontinued operations									0	3,935	213
Net Income available to common shareholders									7,077	11,784	6,241
Numerator for diluted earnings per share:
Net Income from continuing operations available to common shareholders - basic									7,077	7,849	6,028
Add: Dividends on preferred stock									0	0	0
Add: Interest on subordinated debt (tax effected)									0	1,390	0
Net Income available to common shareholders from continuing operations - diluted									$ 7,077	$ 9,239	$ 6,028
Denominator:
Total average shares outstanding (in shares)									10,308,738	8,212,021	8,014,316
Effect of dilutive convertible preferred stock (in shares)									0	0	0
Effect of dilutive convertible subordinated debt (in shares)									0	1,837,500	0
Effect of dilutive stock options (in shares)									131,490	19,212	125,800
Total diluted average shares outstanding (in shares)									10,440,228	10,068,733	8,140,116
Earnings per share from continuing operations - basic (in dollars per share)									$ 0.69	$ 0.96	$ 0.75
Earnings per share from discontinued operations - basic (in dollars per share)									0.00	0.48	0.03
Earnings per common shareholder - basic (in dollars per share)	$ 0.12	$ 0.21	$ 0.21	$ 0.14	$ 0.23	$ 0.25	$ 0.77	$ 0.20	0.69	1.44	0.78
Earnings per share from continuing operations - diluted (in dollars per share)									0.68	0.92	0.74
Earnings per share from discontinued operations - diluted (in dollars per share)									0.00	0.39	0.03
Earnings per common shareholder - diluted (in dollars per share)	$ 0.12	$ 0.21	$ 0.20	$ 0.14	$ 0.22	$ 0.24	$ 0.63	$ 0.20	$ 0.68	$ 1.31	$ 0.77