Derivative Instruments (Details) (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 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	(229,000)		(229,000)
Variable rate on subordinated note			2.36%
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	142,000	155,000	401,000	348,000
Unrealized net holding gain (loss) on cash flow hedge, Tax expense (benefit)	77,000	83,000	216,000	187,000
Mortgage loan interest rate lock commitments outstanding	40,500,000		40,500,000
Fair value of the derivative instruments	607,000		607,000
Fair value of the swap liability	$ 135,000		$ 135,000