Regulatory Capital Requirements (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2016 USD ($) item	Mar. 31, 2015 USD ($)
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Number of previous quarters for which the call report is filed in accordance with U.S.GAAP | item	22
Capital actual amount under regulations [Abstract]
Total capital (to risk-weighted assets)	$ 100,112
Tier I capital (to risk-weighted assets)	90,621
Tier I capital (to average assets, leverage)	90,621
Common equity Tier 1 (to risk-weighted assets)	$ 54,284
Actual Ratio Under RAP [Abstract]
Total capital (to risk-weighted assets) (as a percent)	17.303%
Tier I capital (to risk-weighted assets) (in hundredths)	15.663%
Tier I capital (to average assets, leverage) (as a percent)	11.512%
Common equity Tier 1 (to risk-weighted assets) (in hundredths)	9.382%
For capital adequacy purposes, amount [Abstract]
Total capital (to risk-weighted assets)	$ 49,903
Tier I capital (to risk-weighted assets)	38,331
Tier I capital (to average assets, leverage)	31,487
Common equity Tier 1 (to risk-weighted assets)	$ 29,652
For capital adequacy purposes, ratio [Abstract]
Total capital (to risk-weighted assets) (in hundredths)	8.625%
Tier I capital (to risk-weighted assets) (in hundredths)	6.625%
Tier I capital (to average assets, leverage) (in hundredths)	4.00%
Common equity Tier 1 (to risk-weighted assets) (in hundredths)	5.125%
To be well capitalized under prompt corrective action provision, amount [Abstract]
Total capital (to risk-weighted assets)	$ 57,858
Tier I capital (to risk-weighted assets)	$ 34,715
To be well 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%
To be well capitalized under the Federal Reserve's regulations, amount
Total capital (to risk-weighted assets)	$ 57,858
Tier I capital (to risk-weighted assets)	$ 34,715
To be well capitalized under the Federal Reserve's regulations, ratio
Total capital (to risk-weighted assets) (in hundredths)	10.00%
Tier I capital (to risk-weighted assets) (in hundredths)	6.00%
Adjustments to net loss as well as the capital ratios [Abstract]
RAP net loss	$ 241
Tax lien adjustment, net of noncontrolling interest	1,948
Net income	$ 2,189	$ 1,591
Actual Ratio Under US GAAP [Abstract]
Total capital (to risk-weighted assets) (in hundredths)	17.303%
Tier I capital (to risk-weighted assets) (in hundredths)	15.663%
Tier I capital (to average assets, leverage) (in hundredths)	11.512%
Common equity Tier 1 (to risk-weighted assets) (in hundredths)	9.382%
Ratios As Adjusted Under RAP [Abstract]
Total capital (to risk-weighted assets) (in hundredths)	17.016%
Tier I capital (to risk-weighted assets) (in hundredths)	15.262%
Tier I capital (to average assets, leverage) (in hundredths)	11.207%
Common equity Tier 1 (to risk-weighted assets) (in hundredths)	9.415%
Royal Bank [Member]
Capital actual amount under regulations [Abstract]
Total capital (to risk-weighted assets)	$ 89,899
Tier I capital (to risk-weighted assets)	82,680
Tier I capital (to average assets, leverage)	82,680
Common equity Tier 1 (to risk-weighted assets)	$ 62,959
Actual Ratio Under RAP [Abstract]
Total capital (to risk-weighted assets) (as a percent)	15.64%
Tier I capital (to risk-weighted assets) (in hundredths)	14.384%
Tier I capital (to average assets, leverage) (as a percent)	10.596%
Common equity Tier 1 (to risk-weighted assets) (in hundredths)	10.953%
For capital adequacy purposes, amount [Abstract]
Total capital (to risk-weighted assets)	$ 49,576
Tier I capital (to risk-weighted assets)	38,080
Tier I capital (to average assets, leverage)	31,210
Common equity Tier 1 (to risk-weighted assets)	$ 29,458
For capital adequacy purposes, ratio [Abstract]
Total capital (to risk-weighted assets) (in hundredths)	8.625%
Tier I capital (to risk-weighted assets) (in hundredths)	6.625%
Tier I capital (to average assets, leverage) (in hundredths)	4.00%
Common equity Tier 1 (to risk-weighted assets) (in hundredths)	5.125%
To be well capitalized under prompt corrective action provision, amount [Abstract]
Total capital (to risk-weighted assets)	$ 57,480
Tier I capital (to risk-weighted assets)	45,984
Tier I capital (to average assets, leverage)	39,013
Common equity Tier 1 (to risk-weighted assets)	$ 37,362
To be well 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)	8.00%
Tier I capital (to average assets, leverage) (in hundredths)	5.00%
Common equity Tier 1 (to risk-weighted assets) (in hundredths)	6.50%
To be well capitalized under the Federal Reserve's regulations, amount
Total capital (to risk-weighted assets)	$ 57,480
Tier I capital (to risk-weighted assets)	$ 45,984
To be well capitalized under the Federal Reserve's regulations, ratio
Total capital (to risk-weighted assets) (in hundredths)	10.00%
Tier I capital (to risk-weighted assets) (in hundredths)	8.00%
Adjustments to net loss as well as the capital ratios [Abstract]
RAP net loss	$ 295
Tax lien adjustment, net of noncontrolling interest	1,948
Net income	$ 2,243
As adjusted for RAP
Total capital (to risk-weighted assets) (in hundredths)	15.932%
Tier 1 capital (to risk-weighted assets) (in hundredths)	14.676%
Tier 1 capital (to average assets, leverage) (in hundredths)	10.822%
Common equity Tier 1 (to risk-weighted assets) (in hundredths)	10.915%