Consolidated Statements of Cash Flows (Parenthetical) ft² in Millions		9 Months Ended
	Sep. 16, 2016 USD ($)	Sep. 30, 2016 USD ($) a	Sep. 30, 2015 USD ($) a
Interest paid		$ 6,000,000	$ 3,900,000
Interest capitalized		0	0
Income Taxes Paid		510,000	577,000
Income tax refunds		133,000	$ 3,000
Reduction in the value of accrued stock based Compensation		$ 83,000
Area of a real estate property		1,581
Net realized gain loss on investments		$ (576,000)
Sold | Portfolio Sale
Sales price	$ 51,600,000
Sales price, non-cash transaction amount	23,100,000
Transfer of Portfolio Loans and Leases to Held-for-sale	$ 23,100,000
6 Acres of Undeveloped Land in Daytona Beach Florida [Member]
Area of a real estate property | a			6
Acquisition of interest in property			$ 5,700,000
4.50% Convertible Senior Notes due 2020 [Member]
Amount of loan issued			$ 75,000,000
Debt Instrument Maturity Year		2020	2020
Equity component of the convertible notes issued			$ 2,100,000
Decrease in long-term debt			3,400,000
Increase in deferred income taxes			$ 1,300,000