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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Schedule of Earnings per Common Share) (Details) - USD ($) $ / shares in Units, $ in Thousands | 3 Months Ended | 12 Months Ended
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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, 2015 | Sep. 30, 2015 | Jun. 30, 2015 | Mar. 31, 2015 | Dec. 31, 2017 | Dec. 31, 2016 | Dec. 31, 2015
Accounting Policies [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net income available to common shareholders |  |  |  |  |  |  |  |  |  |  |  |  | $ 36,497 | $ 26,477 | $ 19,972
Basic weighted average shares outstanding |  |  |  |  |  |  |  |  |  |  |  |  | 17,659,625 | 16,318,868 | 15,187,637
Plus: common stock equivalents |  |  |  |  |  |  |  |  |  |  |  |  | 284,060 | 196,130 | 247,359
Diluted weighted-average shares outstanding |  |  |  |  |  |  |  |  |  |  |  |  | 17,943,685 | 16,514,998 | 15,434,996
Earnings per share: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Basic | $ 0.57 | $ 0.57 | $ 0.45 | $ 0.47 | $ 0.44 | $ 0.43 | $ 0.41 | $ 0.35 | $ 0.28 | $ 0.35 | $ 0.34 | $ 0.34 | $ 2.06 | $ 1.62 | $ 1.31
Diluted | $ 0.56 | $ 0.56 | $ 0.45 | $ 0.46 | $ 0.43 | $ 0.43 | $ 0.4 | $ 0.34 | $ 0.28 | $ 0.35 | $ 0.34 | $ 0.33 | $ 2.03 | $ 1.60 | $ 1.29

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- Definition The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 55 -Paragraph 52 -URI http://asc.fasb.org/extlink&oid=96948231&loc=d3e4984-109258 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 225 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-04(19)) -URI http://asc.fasb.org/extlink&oid=6879464&loc=d3e573970-122913 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=96947427&loc=d3e1252-109256 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03(21)) -URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 225 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-04(23)) -URI http://asc.fasb.org/extlink&oid=6879574&loc=d3e536633-122882 + Details
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