Condensed Consolidated Balance Sheets (Parenthetical) (USD $)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013
Accounts receivable, allowance for doubtful accounts	$ 25,000	$ 20,000
Preferred stock, shares authorized	40,000,000	40,000,000
Common stock, par value	$ 0.01	$ 0.01
Common stock, shares authorized	200,000,000	200,000,000
Common stock, shares outstanding	4,692,965	2,897,539
Noncontrolling interest in consolidated partnership, redemption value	25,000	87,000
Redeemable Preferred Stock Series B [Member]
Preferred stock, dividend rate	10.00%	10.00%
Redeemable preferred stock, shares authorized	800,000	800,000
Preferred stock, par value	$ 0.01	$ 0.01
Preferred stock, shares outstanding	332,500	332,500
Preferred stock, shares outstanding	332,500
Preferred stock, liquidation preference	8,312	8,312
Preferred A Stock [Member]
Preferred stock, dividend rate	8.00%	8.00%
Preferred stock, par value	$ 0.01	$ 0.01
Preferred stock, shares authorized	2,500,000	2,500,000
Preferred stock, shares outstanding	803,270	803,270
Preferred stock, liquidation preference	8,033	8,033
Preferred C Stock [Member]
Preferred stock, dividend rate	6.25%	6.25%
Preferred stock, par value	$ 0.01	$ 0.01
Preferred stock, shares outstanding	3,000,000	3,000,000
Preferred stock, shares authorized	3,000,000	3,000,000
Preferred stock, shares outstanding	3,000,000
Preferred stock, liquidation preference	$ 30,000	$ 30,000