Condensed Financial Information - Parent Company Only - Income Statement (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	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, 2016	Dec. 31, 2015
Expenses
Other expenses									$ 1,801	$ 1,592
Total Expenses	$ 4,729	$ 5,001	$ 5,046	$ 5,221	$ 5,427	$ 5,365	$ 5,737	$ 5,375	19,997	20,985
Loss before income taxes and equity in undistributed net income	2,489	2,168	2,247	2,265	1,299	1,713	1,612	1,761
Income Tax Expense (Benefit)	(1,881)	25	60		(5,139)				(1,796)	(5,139)
Net income	$ 4,122	$ 2,030	$ 2,034	$ 2,189	$ 6,407	$ 1,534	$ 1,461	$ 1,591	10,375	10,993
Other comprehensive loss of subsidiaries									(1,300)	(1,427)
Comprehensive income									9,075	9,566
Royal Bancshares [Member]
Income
Other income									22	20
Total Income									22	20
Expenses
Other expenses									230	303
Interest on subordinated debentures									742	639
Total Expenses									972	942
Loss before income taxes and equity in undistributed net income									(950)	(922)
Equity in undistributed net income									11,325	11,915
Net income									10,375	10,993
Other comprehensive loss of subsidiaries									(1,300)	(1,427)
Comprehensive income									$ 9,075	$ 9,566