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Summary of Significant Accounting Policies (Tables) | 3 Months Ended
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Mar. 31, 2017
Summary of Significant Accounting Policies [Abstract] |
Schedule of financial assets measured at fair value on nonrecurring basis |
|  | As of March 31, 2017 |
|  | Level 1 |  |  | Level 2 |  |  | Level 3 |  |  | Total |
Assets: |  |  |  |  |  |  |  |  |  |  |  |
Cash and money market accounts |  | $ | 4,252,020 |  |  |  | - |  |  |  | - |  |  | $ | 4,252,020 |
Bank certificates of deposit |  |  | - |  |  | $ | 2,978,355 |  |  |  | - |  |  | $ | 2,978,355 |
Liabilities: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interest rate swaps |  |  | - |  |  | $ | 21,611 |  |  |  | - |  |  | $ | 21,611 |
|  | As of December 31, 2016 |
|  | Level 1 |  |  | Level 2 |  |  | Level 3 |  |  | Total |
Assets: |  |  |  |  |  |  |  |  |  |  |  |
Cash and money market accounts |  | $ | 5,150,344 |  |  |  | - |  |  |  | - |  |  | $ | 5,150,344 |
Bank certificates of deposit |  |  | - |  |  | $ | 5,474,013 |  |  |  | - |  |  | $ | 5,474,013 |
Liabilities: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interest rate swaps |  |  | - |  |  | $ | 37,346 |  |  |  | - |  |  | $ | 37,346 |
Schedule of sales to significant customers |
|  | Three-Month Period Ended March 31, |
|  | 2017 |  |  | 2016 |
Patterson Companies, Inc. |  |  | 40 | % |  |  | 37 | %
AmerisourceBergen Corporation |  |  | 26 | % |  |  | 21 | %
Robert J. Matthews Company |  |  | * |  |  |  | 10 | %
Schedule of accounts receivable due from significant customers |
|  | As of March 31, 2017 |  |  | As of December 31, 2016 |
Patterson Companies, Inc. |  |  | 28 | % |  |  | 31 | %
AmerisourceBergen Corporation |  |  | 27 | % |  |  | 33 | %
ANIMART LLC(1) |  |  | 12 | % |  |  | * |
(1)Assumes that the acquisition of Animal Medic by ANIMART LLC (which closed during the third quarter of 2016) had occurred as of the beginning of the periods being reported. *Amount is less than 10%.
Schedule of weighted average and diluted number of shares outstanding |
|  | Three-Month Periods Ended March 31, |
|  | 2017 |  |  | 2016 |
Weighted average number of shares outstanding |  |  | 4,847,557 |  |  |  | 3,833,056 |
Effect of dilutive stock options |  |  | 92,736 |  |  |  | 111,294 |
Diluted number of shares outstanding |  |  | 4,940,293 |  |  |  | 3,944,350 |
Outstanding stock options not included in the calculation because the effect would be anti-dilutive |  |  | 184,000 |  |  |  | 14,000 |

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- Definition Tabular disclosure of assets and liabilities by class, including financial instruments measured at fair value that are classified in shareholders' equity, if any, that are measured at fair value on a nonrecurring basis in periods after initial recognition (for example, impaired assets). Disclosures may include, but are not limited to: (a) the fair value measurements recorded and the reasons for the measurements and (b) the level within the fair value hierarchy in which the fair value measurements are categorized in their entirety (levels 1, 2, 3). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (bbb) -URI http://asc.fasb.org/extlink&oid=66048111&loc=d3e19207-110258 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=66048111&loc=d3e19190-110258 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=66048111&loc=d3e19207-110258 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=66048111&loc=d3e19207-110258 + Details
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