Derivative Instruments (Details) (USD $)	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011	Mar. 31, 2008
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Floating-rate subordinated note					$ 25,000,000
Interest rate swap's fair value included in other liabilities	(448,000)		(448,000)
Variable rate on subordinated note			2.46%
3-month LIBOR basis points	2.00%		2.00%
Fixed rate on interest rate swap paid by Park	6.01%		6.01%
Fixed rate basis points	2.00%		2.00%
Fixed rate on the interest rate swap	4.01%		4.01%
Change in fair value of interest rate swap, Net-of-tax amount	146,000	60,000	259,000	193,000
Unrealized net holding gain (loss) on cash flow hedge, Tax expense (benefit)	79,000	33,000	139,000	104,000
Mortgage loan interest rate lock commitments outstanding	27,000,000		27,000,000
Fair value of the derivative instruments	365,000		365,000
Fair value of the swap liability	$ 135,000		$ 135,000