Disclosure about Fair Value of Financial Instruments (Details 1) (USD $)	Mar. 31, 2014		Dec. 31, 2013
The Market approach utilized to measure fair value of financial assets and liabilities on recurring basis
Available-for-sale equity investments	$ 1,760,000		$ 1,211,000
Interest rate swap agreements	25,000	[1]
Foreign currency forward contracts	3,690,000	[1]
Totals	5,475,000
Level 1 [Member]
The Market approach utilized to measure fair value of financial assets and liabilities on recurring basis
Available-for-sale equity investments	1,760,000
Interest rate swap agreements	0	[1]
Foreign currency forward contracts	0	[1]
Totals	1,760,000
Level 2 [Member]
The Market approach utilized to measure fair value of financial assets and liabilities on recurring basis
Available-for-sale equity investments	0
Interest rate swap agreements	25,000	[1]
Foreign currency forward contracts	3,690,000	[1]
Totals	3,715,000
Level 3 [Member]
The Market approach utilized to measure fair value of financial assets and liabilities on recurring basis
Available-for-sale equity investments	0
Interest rate swap agreements	0	[1]
Foreign currency forward contracts	0	[1]
Totals	$ 0

[1] (2) Please see Note 11 for additional information.