INVESTMENT SECURITIES (Schedule of owned pooled trust preferred securities) (Details) - Trust preferred securities $ in Thousands	3 Months Ended
	Mar. 31, 2019 USD ($)
Security
Par value - security	$ 2,719
Book value - security	2,529
Estimated fair value - security	2,674
Previously Recognized Cumulative Other Comprehensive Loss	223
Other than temporarily impaired
Par value - other than temporarily impaired	3,650
Book value - other than temporarily impaired	2,589
Estimated fair value - other than temporarily impaired	2,580
Cumulative OTTI Related to Credit Loss	1,060
Par value	6,369
Book value	5,118
Estimated fair value	5,254
Alesco VII A1B Senior [Member] | Rating of Moody Aaa, Fitch AAA When Purchased and Moody Aa2, Fitch AA Current Ratings [Member]
Security
Par value - security	2,658
Book value - security	2,468
Estimated fair value - security	$ 2,614
Current Deferrals and Defaults - Security	17.00%
Previously Recognized Cumulative Other Comprehensive Loss	$ 219
MMCF III B Senior Sub [Member] | Rating of Moody A3, Fitch A- When Purchased and Moody Ba1, Fitch BBB Current Ratings [Member]
Security
Par value - security	61
Book value - security	61
Estimated fair value - security	$ 60
Current Deferrals and Defaults - Security	45.00%
Previously Recognized Cumulative Other Comprehensive Loss	$ 4
TPREF Funding II Mezzanine [Member] | Rating of Moody A1, Fitch A- When Purchased and Moody Caa3, Fitch C Current Ratings [Member]
Other than temporarily impaired
Par value - other than temporarily impaired	1,500
Book value - other than temporarily impaired	1,099
Estimated fair value - other than temporarily impaired	$ 775
Current Deferrals and Defaults - other than temporarily impaired	28.00%
Cumulative OTTI Related to Credit Loss	$ 400
ALESCO V C1 Mezzanine [Member] | Rating of Moody A2, Fitch A When Purchased and Moody Caa1, Fitch C Current Ratings [Member]
Other than temporarily impaired
Par value - other than temporarily impaired	2,150
Book value - other than temporarily impaired	1,490
Estimated fair value - other than temporarily impaired	$ 1,805
Current Deferrals and Defaults - other than temporarily impaired	14.00%
Cumulative OTTI Related to Credit Loss	$ 660