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Business Combination (Details) - USD ($) |  | 12 Months Ended
--- | --- | ---
Sep. 02, 2016 | Dec. 31, 2016 | Dec. 31, 2015
PTF Acquisition [Abstract] |  |  |
Date of acquisition | Sep. 02, 2016 |  |
Weighted average useful life of acquired intangible assets | 10 years |  |
Revenues from operations |  | $ 20,891,000 | $ 20,713,000
Assets Acquired and Liabilities Assumed [Abstract] |  |  |
Purchase consideration | $ 295,000 | 295,000 | 0
Net assets acquired: [Abstract] |  |  |
Current assets | 45,000 | 45,000 | 0
Current liabilities | (45,000) |  |
Net assets acquired | 299,000 |  |
Bargain purchase gain | (4,000) | (4,000) | 0
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: [Abstract] |  |  |
Fixed assets | 85,000 |  |
Intangible assets | $ 214,000 |  |
Historical [Abstract] |  |  |
Historical revenue |  | 21,129,000 | 21,443,000
Historical net income (loss) |  | $ 136,000 | $ (752,000)
Historical basic net income (loss) per share |  | $ 0.05 | $ (0.29)
Historical diluted net income (loss) per share |  | $ 0.05 | $ (0.29)
Pro Forma Adjustments [Abstract] |  |  |
Revenue |  | $ 0 | $ 0
Net income (loss) |  | $ 25,000 | $ (55,000)
Basic net income (loss) per share (in dollars per share) |  | $ 0.01 | $ (0.01)
Diluted net income (loss) per share (in dollars per share) |  | $ 0.01 | $ (0.01)
Pro Forma [Abstract] |  |  |
Revenue |  | $ 21,129,000 | $ 21,443,000
Net income (loss) |  | $ 161,000 | $ (807,000)
Basic net income (loss) per share (in dollars per share) |  | $ 0.06 | $ (0.30)
Diluted net income (loss) per share (in dollars per share) |  | $ 0.06 | $ (0.30)
PTF Inc. [Member] | Sales [Member] |  |  |
PTF Acquisition [Abstract] |  |  |
Revenues from operations |  | $ 200,000 |

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