PARENT COMPANY FINANCIAL DATA - Condensed Balance Sheets (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2015
Assets
Cash balances with Select Bank & Trust	$ 79,077	$ 139,362	$ 62,695	$ 55,714
Other assets	7,202	6,288
Total Assets	1,275,076	1,258,525
Liabilities and Shareholders' Equity
Junior subordinated debentures	12,400	45,000
Total Liabilities	1,062,301	1,048,914
Shareholders' equity:
Preferred stock	0	0
Common stock	18,330	19,312
Additional paid-in capital	140,870	150,718
Retained earnings	52,675	39,640
Common stock issued to deferred compensation trust, at cost; 312,956 and 303,239 shares outstanding at September 30,	(2,815)	(2,615)
Directors' Deferred Compensation Plan Rabbi Trust	2,815	2,615
Accumulated other comprehensive income	900	(59)
Total Shareholders' Equity	212,775	209,611
Total Liabilities and Shareholders' Equity	1,275,076	1,258,525
Parent Company [Member]
Assets
Cash balances with Select Bank & Trust	22,556	34,949	$ 12,617	$ 314
Investment in Select Bank & Trust	196,536	181,442
Investment in New Century Statutory Trust I	598	580
Other assets	5,711	5,255
Total Assets	225,401	222,226
Liabilities and Shareholders' Equity
Junior subordinated debentures	12,372	12,372
Accrued interest and other liabilities	254	243
Total Liabilities	12,626	12,615
Shareholders' equity:
Preferred stock	0	0
Common stock	18,330	19,312
Additional paid-in capital	140,870	150,718
Retained earnings	52,675	39,640
Common stock issued to deferred compensation trust, at cost; 312,956 and 303,239 shares outstanding at September 30,	(2,815)	(2,615)
Directors' Deferred Compensation Plan Rabbi Trust	2,815	2,615
Accumulated other comprehensive income	900	(59)
Total Shareholders' Equity	212,775	209,611
Total Liabilities and Shareholders' Equity	$ 225,401	$ 222,226