Condensed Financial Information - Parent Company Only - Balance Sheet (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
ASSETS
Cash	$ 13,146	$ 10,394
Other assets	10,663	9,145
Total assets	832,485	788,283
LIABILITIES
Other Liabilities	20,181	20,640
Shareholders' equity
Shareholder's equity	52,273	72,298	$ 62,606
LIABILITIES AND SHAREHOLDERS' EQUITY
Total liabilities and shareholders' equity	832,485	788,283
Royal Bancshares [Member]
ASSETS
Cash	1,027	10,152
Investments in non-bank subsidiaries	5,490	26,212
Investments in Royal Bank	70,856	61,309
Other assets	59	15
Total assets	77,432	97,688
LIABILITIES
Subordinated debentures	25,774	25,774
Other Liabilities	10	10
Shareholders' equity
Shareholder's equity	51,648	71,904
LIABILITIES AND SHAREHOLDERS' EQUITY
Total liabilities and shareholders' equity	$ 77,432	$ 97,688