Quarterly report pursuant to Section 13 or 15(d)

Fair Value of Other Securities (Details Textual)

v3.3.0.814
Fair Value of Other Securities (Details Textual) - USD ($)
3 Months Ended 9 Months Ended
Sep. 30, 2015
Sep. 30, 2015
Sep. 30, 2014
Schedule of Equity Method Investments [Line Items]      
Transfers between levels   $ 0  
Unrealized gain on other equity securities $ 0 $ 282,000  
Escrow Receivable Release Percentage after Time Expiration   50.00%  
Lightfoot Capital Partners LP [Member]      
Schedule of Equity Method Investments [Line Items]      
Equity interest 6.70% 6.70%  
Vantacore Partners LP [Member]      
Schedule of Equity Method Investments [Line Items]      
Equity interest     11.10%
Minimum [Member] | Lightfoot Capital Partners LP [Member]      
Schedule of Equity Method Investments [Line Items]      
Fair Value Inputs, Discount for Lack of Marketability   13.70% 14.10%
Fair Value Inputs, Discount Rate   13.00% 12.00%
Maximum [Member] | Lightfoot Capital Partners LP [Member]      
Schedule of Equity Method Investments [Line Items]      
Fair Value Inputs, Discount for Lack of Marketability   17.60% 18.10%
Fair Value Inputs, Discount Rate   15.00% 14.00%