Investments (Change in Accounting Principle) (Details) (USD $)	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013	Dec. 31, 2013	Dec. 31, 2012
Schedule of Equity Method Investments [Line Items]
INVESTMENTS	$ 28,692,634		$ 25,292,634
Investments in affiliates	3,377,407		3,428,633
Retained earnings	95,699,369	95,816,572	98,518,546	97,758,013
Total stockholders' equity	113,529,454		114,432,381
Dividend income	104,000	748,736
Equity in affiliate earnings (losses), net of tax	(51,226)	(2,222)
Net loss	(2,819,177)	(1,941,441)
Net income per share (in dollars per share)	$ (0.71)	$ (0.48)
General Finance Incorporated (GFI) [Member]
Schedule of Equity Method Investments [Line Items]
Investments in affiliates	3,377,407		3,428,633
Equity in affiliate earnings (losses), net of tax		(2,222)
Net loss		(1,941,441)
Net income per share (in dollars per share)		$ (0.48)
As Previously Reported [Member] | General Finance Incorporated (GFI) [Member]
Schedule of Equity Method Investments [Line Items]
Equity in affiliate earnings (losses), net of tax		0
Net loss		$ (1,939,219)
Net income per share (in dollars per share)		$ (0.48)