Business Combination (Details) - USD ($)		12 Months Ended
	Sep. 02, 2016	Dec. 31, 2017	Dec. 31, 2016
PTF Acquisition [Abstract]
Date of acquisition	Sep. 02, 2016
Cash consideration paid	$ 295,000		$ 295,000
Weighted average useful life of acquired intangible assets	10 years
Revenues from operations		$ 22,402,000	20,891,000
Assets Acquired and Liabilities Assumed [Abstract]
Cash consideration paid	$ 295,000		295,000
Net assets acquired:
Current assets	45,000		45,000
Current liabilities	(45,000)
Net assets acquired	299,000
Bargain purchase gain	(4,000)		(4,000)
Income (Loss) [Member]
PTF Acquisition [Abstract]
Loss attributable to acquisition			(57,000)
General and Administrative Expense [Member]
PTF Acquisition [Abstract]
Acquistion costs			38,000
PTF Inc. [Member]
Net assets acquired:
Fixed assets	85,000
Intangible assets	$ 214,000
Historical [Abstract]
Historical revenue			21,129,000
Historical net income (loss)			$ 136,000
Historical basic net income (loss) per share			$ 0.05
Historical diluted net income (loss) per share			$ 0.05
Pro Forma Adjustments [Abstract]
Revenue			$ 0
Net income (loss)			$ 25,000
Basic net income (loss) per share (in dollars per share)			$ 0.01
Diluted net income (loss) per share (in dollars per share)			$ 0.01
Pro Forma [Abstract]
Revenue			$ 21,129,000
Net income (loss)			$ 161,000
Basic net income (loss) per share (in dollars per share)			$ 0.06
Diluted net income (loss) per share (in dollars per share)			$ 0.06
PTF Inc. [Member] | Sales [Member]
PTF Acquisition [Abstract]
Revenues from operations			$ 200,000