19. Derivative Financial Instruments (Details) (USD $)	Dec. 31, 2013
Cash Flow Hedge Derivative Notional Amount	$ 70,000,000
Cash Flow Hedge Derivative Assets Fair Value	803,000
Cash Flow Hedge Derivative Liability Fair Value	0
Cash Flow Hedge Derivative Net ineffective hedge gain losses	0
Long-term Debt [Member]
Cash Flow Hedge Derivative Notional Amount	70,000,000
Cash Flow Hedge Derivative Assets Fair Value	803,000
Cash Flow Hedge Derivative Liability Fair Value	0
Cash Flow Hedge Derivative Net ineffective hedge gain losses	$ 0