Net Income (Loss) Per Share - Schedule of Antidilutive Securities Excluded from Calculations of Net Loss Per Share (Details) - shares	3 Months Ended
Mar. 31, 2019	Mar. 31, 2018
Anti-dilutive securities	1,417,000	882,000
Outstanding Options to Purchase Common Stock [Member]
Anti-dilutive securities	1,200,000	426,000
Warrants to Purchase Common Stock [Member]
Anti-dilutive securities	217,000	209,000
Notes Payable Convertible to Common Stock [Member]
Anti-dilutive securities		247,000

Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257

Name:	us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration