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Income Taxes (Narrative) (Details) | 9 Months Ended | 12 Months Ended |
--- | --- | --- | ---
Sep. 30, 2015 USD ($) | Dec. 31, 2016 USD ($) item | Dec. 31, 2015 USD ($) | Dec. 31, 2014 | Dec. 31, 2012 USD ($) | Dec. 31, 2009 USD ($)
Tax effect | $ 0 | $ 810,000 | $ (3,193,000) |  |  |
Number of consecutive quarters of pretax income | item |  | 7 |  |  |  |
Proceeds from sale of common stock |  |  |  |  | $ 22,500,000 |
Net operating loss carry forwards |  | $ 23,059,000 |  |  |  |
Alternative minimum tax credit carryforwards |  | 50,000 | $ 105,000 |  |  |
Carryforwards utilize limit before the stock offering closed |  | 163,000 |  |  |  |
Unutilized operating loss carryforwards that will expire |  | 20,520,000 |  |  |  |
Reduced deferred tax assets and valuation allowance |  | 6,977,000 |  |  |  |
Deferred tax liability to be recorded |  | $ 765,000 |  |  |  |
Federal income tax rate |  | 34.00% | 34.00% | 34.00% |  |
Additional bad debt deductions provided by Federal income tax laws |  | $ 2,250,000 |  |  |  |
Deferred tax asset |  | 2,627,000 | $ 3,254,000 |  |  |
Deferred tax asset |  |  |  |  |  | $ 0
Unrecognized tax benefits |  | $ 0 | $ 0 |  |  |
Minimum [Member] |  |  |  |  |  |
Net operating loss carryforwards expiration year |  | 2024 |  |  |  |
Maximum [Member] |  |  |  |  |  |
Net operating loss carryforwards expiration year |  | 2033 |  |  |  |

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- Definition Amount, after allocation of valuation allowances and deferred tax liability, of deferred tax asset attributable to deductible differences and carryforwards, before jurisdictional netting. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32537-109319 + Details
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