Stock-Based Compensation (Narrative) (Details) - USD ($)
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3 Months Ended |
9 Months Ended |
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Sep. 30, 2016 |
Sep. 30, 2015 |
Sep. 30, 2016 |
Sep. 30, 2015 |
Jun. 30, 2016 |
Dec. 31, 2015 |
Jun. 03, 2015 |
Dec. 31, 2014 |
Dec. 31, 2013 |
| Chief Executive Officer [Member] |
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| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
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| Stock options granted |
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57,500
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| Compensation expense |
$ 77,000
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$ 77,000
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| Fair value of options |
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$ 230,575
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| Exercise price of options granted |
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$ 8.19
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| Option term |
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10 years
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| Option vesting period |
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3 years
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| Employee Stock Options [Member] |
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| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
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| Stock options granted |
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57,500
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| Compensation expense |
90,000
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$ 31,000
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$ 135,000
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$ 74,000
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| Unrecognized compensation expense |
182,000
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$ 182,000
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| Period over which compensation expense will be recognized |
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1 year 4 months 24 days
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| Exercise price of options granted |
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$ 8.19
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| Restricted Stock [Member] |
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| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
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| Unrecognized compensation expense |
$ 129,000
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$ 129,000
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| Period over which compensation expense will be recognized |
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1 year 2 months 12 days
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| Outstanding |
5,556
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5,556
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44,445
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| Restricted stock expense |
$ 28,000
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$ 83,000
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$ 83,000
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$ 277,000
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| Warrant [Member] |
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| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
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| Outstanding |
514,064
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514,064
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45,314
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362,500
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| Fair value of warrants |
$ 272,133
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$ 272,133
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$ 783,458
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| Equity Compensation Plan [Member] |
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| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
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| Number of shares authorized for issuance under equity incentive plan |
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225,000
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62,500
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