Consolidated Statements of Cash Flows (Unaudited) (USD $) In Thousands, unless otherwise specified	3 Months Ended
Mar. 31, 2015	Mar. 31, 2014
Operating Activities
Net income	$ 5,722us-gaap_NetIncomeLoss	$ 4,944us-gaap_NetIncomeLoss
Adjustments to reconcile net income to net cash provided by operating activities:
Provision for loan losses	1,500us-gaap_ProvisionForLoanAndLeaseLosses	900us-gaap_ProvisionForLoanAndLeaseLosses
Depreciation, amortization and accretion	2,861	2,029
Deferred income tax expense	39us-gaap_DeferredIncomeTaxExpenseBenefit	44us-gaap_DeferredIncomeTaxExpenseBenefit
Losses on sales of available for sales securities (net)	166	0
Gain on sales/calls of held to maturity securities	(138)	(11)
Proceeds/payments from sales of loans originated for sale	12,813	7,715
Loans originated for sale	(13,126)	(4,895)
Gains on sales of loans (net)	(471)us-gaap_GainLossOnSalesOfLoansNet	(136)us-gaap_GainLossOnSalesOfLoansNet
Gains on sales of foreclosed assets (net)	(22)	(62)
Losses on disposal of premises and equipment (net)	50	1
Stock-based compensation	61us-gaap_ShareBasedCompensation	51us-gaap_ShareBasedCompensation
Increase in other assets	(952)	(1,612)
Increase in other liabilities	2,444	227
Net cash provided by operating activities	10,947	9,195
Securities available for sale:
Proceeds from principal repayments, calls and maturities	18,151	14,499
Proceeds from sales	27,806	0
Securities held to maturity:
Proceeds from principal repayments, calls and maturities	10,375	3,134
Proceeds from sales	1,448	614
Purchases	(9,728)	0
Proceeds from sales of loans not originated for sale	401	0
Proceeds from sales of foreclosed assets	301	1,134
Increase in loans receivable (net)	(8,369)	(52,534)
Purchase of restricted investment in bank stock (net)	(798)	(993)
Purchases of premises and equipment	(1,073)	(521)
Net cash provided by (used in) investing activities	38,514	(34,667)
Financing Activities
Increase (decrease) in demand, interest checking, money market, and savings deposits (net)	28,831	(44,386)
Increase in time and other noncore deposits (net)	2,016	37
Increase (decrease) in short-term borrowings (net)	(86,489)	102,439
Proceeds from long-term borrowings	25,000	0
Proceeds from common stock options exercised	471	100
Proceeds from dividend reinvestment and common stock purchase plan	33us-gaap_ProceedsFromStockPlans	15us-gaap_ProceedsFromStockPlans
Tax benefit on exercise of stock options	236	19
Cash dividends on preferred stock	(20)	(20)
Cash dividends on common stock	(994)us-gaap_PaymentsOfDividendsCommonStock	0us-gaap_PaymentsOfDividendsCommonStock
Purchase of treasury stock	(2,979)	0
Net cash provided by (used in) financing activities	(33,895)	58,204
Increase in cash and cash equivalents	15,566	32,732
Cash and cash equivalents at beginning of year	42,832	44,996
Cash and cash equivalents at end of period	58,398	77,728
Supplemental disclosure of cash flow information:
Cash paid for interest on deposits and borrowings	1,756us-gaap_InterestPaid	1,667us-gaap_InterestPaid
Cash paid for income taxes	550us-gaap_IncomeTaxesPaid	0us-gaap_IncomeTaxesPaid
Supplemental schedule of noncash activities:
Transfer of loans to foreclosed assets	$ 494metr_TransferOfLoansToForeclosedAssets	$ 373metr_TransferOfLoansToForeclosedAssets

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Amount of expense related to estimated loss from loan and lease transactions.

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