Liquidity and Profitability (Details Textual) (USD $)	1 Months Ended	2 Months Ended	3 Months Ended		6 Months Ended				6 Months Ended					12 Months Ended	1 Months Ended
	Mar. 28, 2014	Mar. 31, 2014	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013	Dec. 31, 2013	Dec. 31, 2012	Jun. 30, 2014 Promissory note maturing in August 2014	Jun. 30, 2014 Promissory note maturing in April 2015	Jun. 30, 2014 Mature in January 2015	Jun. 30, 2014 Mature in February 2015	Mar. 28, 2014 Convertible Debt Securities	Jun. 30, 2015 Scenario, Forecast [Member]	Aug. 31, 2014 Scenario, Forecast [Member] Mature in February 2015	Aug. 07, 2014 Subsequent Event Promissory note maturing in August 2014	Aug. 05, 2014 Subsequent Event Promissory note maturing in August 2014	Aug. 07, 2014 Subsequent Event Promissory note maturing in April 2015	Aug. 05, 2014 Subsequent Event Promissory note maturing in April 2015
Management's plan for increasing liquidity and profitability
Net loss			$ 2,795,000	$ 6,945,000	$ 5,318,000	$ 9,695,000
Negative working capital			34,700,000		34,700,000
Cash and cash equivalents			11,147,000	10,222,000	11,147,000	10,222,000	19,374,000	15,937,000
Total indebtedness			153,230,000		153,230,000		160,307,000
Current debt			55,600,000		55,600,000
Principal amount of unsecured convertible debt									4,000,000	6,500,000					2,900,000
Conversions of debt to equity					2,930,000	349,000
Conversion price (in dollars per share)																$ 3.73		$ 4.50
Net cash used in operating activities - continuing operations					(7,690,000)	(286,000)								7,300,000
Cash outlays for acquisition costs, maintenance capital expenditures, dividends on Series A preferred stock and income taxes														5,100,000
Debt service requirements											6,400,000	21,000,000
Scheduled debt service														16,300,000
Closing price of the common stock (in dollars per share)																	$ 3.73		$ 4.50
Common stock issued upon conversion		693,761
Conversion exercise price			3.57		3.57
Exercise of warrants and options		2,300,000			2,342,000	67,000
Payments for commissions		100,000
Proceeds from issuance of debt	6,300,000
Fixed interest rate (as a percent)													10.00%
Period up to which operating and financing obligations can be met through liquidity maintained by the entity					12 months
Total debt payments and maturities excluding convertible debt			$ 44,200,000		$ 44,200,000