Organization, Nature of Business and Management's Plans (Details Textual)	12 Months Ended
	Dec. 31, 2015 USD ($) Segment	Dec. 31, 2014 USD ($)	Dec. 31, 2013 USD ($)	Dec. 31, 2012 USD ($)	Mar. 22, 2016 USD ($)
Organization Consolidation And Presentation Of Financial Statements Disclosure [Line Items]
Number of primary business segments | Segment	1
Total net revenue	$ 11,641,000	$ 11,117,000	$ 21,700,000	$ 39,700,000
Net (loss) income	(2,911,000)	(6,199,000)
Line of credit current borrowing capacity	0
Increase in working capital deficit	2,421,000
Increase (decrease) in working capital	(4,773,000)	(2,352,000)
Fixed expenses reduced by cutting administrative costs through cutting headcount and facilities rent	2,200,000	$ 9,700,000
Obligation to decrease lender's outstanding balance per month	$ 85,000
Subsequent Event
Organization Consolidation And Presentation Of Financial Statements Disclosure [Line Items]
Line of credit					$ 3,346,000
ZBC
Organization Consolidation And Presentation Of Financial Statements Disclosure [Line Items]
Noncontrolling interest, ownership percentage	80.00%
ZMI
Organization Consolidation And Presentation Of Financial Statements Disclosure [Line Items]
Percentage of revenues earned	99.60%	96.20%
Pharmazy
Organization Consolidation And Presentation Of Financial Statements Disclosure [Line Items]
Percentage of revenues earned	9.70%	10.00%
ZMS
Organization Consolidation And Presentation Of Financial Statements Disclosure [Line Items]
Total net revenue	$ 0	$ 0