Regulatory Capital Requirements (Details) (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Jun. 30, 2012
Regulatory Capital Requirements [Abstract]
Minimum Tier one leverage ratio required (in hundredths)	8.00%
Aggregate risk based capital ratio (in hundredths)	12.00%
Actual Ratio Under RAP [Abstract]
Total capital (to risk-weighted assets) (in hundredths)	16.52%
Tier I capital (to average assets, leverage) (in hundredths)	9.37%
As reported [Abstract]
Total capital (to risk-weighted assets) (in hundredths)	16.52%
Tier I capital (to average assets, leverage) (in hundredths)	9.37%
Royal Bank [Member]
Capital actual amount under regulations [Abstract]
Total capital (to risk-weighted assets)	$ 82,885
Tier I capital (to risk-weighted assets)	76,475
Tier I capital (to average assets, leverage)	76,475
Actual Ratio Under RAP [Abstract]
Total capital (to risk-weighted assets) (in hundredths)	16.52%
Tier I capital (to risk-weighted assets) (in hundredths)	15.24%
Tier I capital (to average assets, leverage) (in hundredths)	9.37%
For capital adequacy purposes, amount [Abstract]
Total capital (to risk-weighted assets)	40,136
Tier I capital (to risk-weighted assets)	20,068
Tier I capital (to average assets, leverage)	32,654
For capital adequacy purposes, ratio [Abstract]
Total capital (to risk-weighted assets) (in hundredths)	8.00%
Tier I capital (to risk-weighted assets) (in hundredths)	4.00%
Tier I capital (to average assets, leverage) (in hundredths)	4.00%
To be well capitalized capitalized under prompt corrective action provision, amount [Abstract]
Total capital (to risk-weighted assets)	50,169
Tier I capital (to risk-weighted assets)	30,102
Tier I capital (to average assets, leverage)	40,817
To be well capitalized capitalized under prompt corrective action provision, ratio [Abstract]
Total capital (to risk-weighted assets) (in hundredths)	10.00%
Tier I capital (to risk-weighted assets) (in hundredths)	6.00%
Tier I capital (to average assets, leverage) (in hundredths)	5.00%
Adjustments to net loss as well as the capital ratios [Abstract]
RAP net loss	(7,240)
Tax lien adjustment, net of noncontrolling interest	5,529
U.S. GAAP net loss	(1,711)
As reported [Abstract]
Total capital (to risk-weighted assets) (in hundredths)	16.52%
Tier I capital (to risk-weighted assets) (in hundredths)	15.24%
Tier I capital (to average assets, leverage) (in hundredths)	9.37%
As adjusted [Abstract]
Total capital (to risk-weighted assets) (in hundredths)	18.05%
Tier I capital (to risk-weighted assets) (in hundredths)	16.77%
Tier I capital (to average assets, leverage) (in hundredths)	10.38%
Royal Bancshares [Member]
Capital actual amount under regulations [Abstract]
Total capital (to risk-weighted assets)	102,413
Tier I capital (to risk-weighted assets)	94,613
Tier I capital (to average assets, leverage)	94,613
Actual Ratio Under RAP [Abstract]
Total capital (to risk-weighted assets) (in hundredths)	19.81%
Tier I capital (to risk-weighted assets) (in hundredths)	18.30%
Tier I capital (to average assets, leverage) (in hundredths)	11.31%
For capital adequacy purposes, amount [Abstract]
Total capital (to risk-weighted assets)	41,368
Tier I capital (to risk-weighted assets)	20,684
Tier I capital (to average assets, leverage)	33,463
For capital adequacy purposes, ratio [Abstract]
Total capital (to risk-weighted assets) (in hundredths)	8.00%
Tier I capital (to risk-weighted assets) (in hundredths)	4.00%
Tier I capital (to average assets, leverage) (in hundredths)	4.00%
Adjustments to net loss as well as the capital ratios [Abstract]
RAP net loss	(8,348)
Tax lien adjustment, net of noncontrolling interest	(5,529)
U.S. GAAP net loss	$ (2,819)
As reported [Abstract]
Total capital (to risk-weighted assets) (in hundredths)	19.81%
Tier I capital (to risk-weighted assets) (in hundredths)	18.30%
Tier I capital (to average assets, leverage) (in hundredths)	11.31%
As adjusted [Abstract]
Total capital (to risk-weighted assets) (in hundredths)	18.33%
Tier I capital (to risk-weighted assets) (in hundredths)	16.82%
Tier I capital (to average assets, leverage) (in hundredths)	10.32%