Tax effects of temporary differences and carry forwards of deferred tax assets and liabilities (Details) - USD ($)	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Deferred tax assets:
Net operating loss carryforward	$ 742,000	$ 1,054,000
Intangible assets	395,000	351,000
Fixed assets		9,000
Valuation allowance	(1,084,000)	(1,347,000)
Net Deferred tax assets	53,000	67,000
Deferred tax liabilities:
Liabilities and reserves	(36,000)	(67,000)
Inventory	(11,000)
Fixed assets	(6,000)	9,000
Net Deferred tax assets	(53,000)	(67,000)
Net deferred tax assets and liabilities		$ 0
Significant net operating loss carry forwards for income tax reporting	$ 3,187,000