Goodwill and Intangibles - Amortizable intangibles (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 2,154	$ 204	$ 204
Amortization during the period	118	20
Accumulated Amortization	223	105	85
1st Commonwealth
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	204	204	204
Amortization during the period	20	20
Accumulated Amortization	125	$ 105	$ 85
Colombo
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	1,950
Amortization during the period	98
Acquisition during the period	1,950
Accumulated Amortization	$ 98